Still didn't get it after all of our previous replies?
Okay, I'll break it down in a list:

• First open a blockexplorer where 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj's history was listed: here Open in a new Tab
  
• Secondly, from the bottom of the page, transaction afc314f97ab2e02076c4ceba0c2d8493b840b23570b97b2a60fcf5cf57fca9ae is your 1st tx which have inputs from Kraken's addresses to different outputs including 0.09481172 BTC to 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj.
  But this tx wasn't credited by coinbase since it isn't their address.
  
• Next, transaction 17fa98a77b8ce4dc91bd9569f4663687922344f223b9979dbb54a31996b11beb the 0.094BTC was quickly sent by the user or malware program to 36ii5gNkZw2vAZ8TVk9dYXtVVbJxk68hiE which belongs to your coinbase account (we can confirm this by looking at the image you've provided)
  And this is why the first transaction made it through your coinbase account.
  

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The Second transaction's funds however, is still being held by 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj: f1c52f3edd8fcb8277013b7654bcba48a1c3559bddd6ff305a95491210d6fde0

I'm afraid that this must be the case.
Once your PC got compromised, there's no stopping the hacker from getting that file.
Leaving a backup inside the same machine where the wallet was is a total security risk.

When you created that wallet, was it a "new seed", an imported seed from somewhere else or imported private key(s)?

Depends if he still uses the vulnerable versions of Electrum, but password-protected wallets were still safe from being hacked (Read link).

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Possibly, your Seed or private keys backups were compromised in July or earlier months, did you have a backup stored somewhere?

I'm 80% sure that this is another case of "Bitcoin Generator Scams" that usually appears on faucets and malicious sites.

It comes with an interface that looks like sophisticated command line and showing the user that he generated the amount of bitcoins that he has chosen, others are just straightforward "You win 0.5/1BTC from site.com" message.
Then, it will ask the user a to send a small amount (0.005BTC) as a processing fee before it can be sent to him.

@meysam2018 Where did you get this message that "You've won 0.5BTC from bitcoin.org?"

FYI, Bitcoin.org is crowdfunded and it never did any giveaway contests or whatsoever,
and Bitcoin is decentralized, there's no central authority that governs or manages the transactions.

and (lol) here's the most accurate translation:

Hi users of Bitcointalk
I bought 0.005bitcoins from a site that sells Bitcoins because
I've won 0.5bitcoins from bitcoin.org and I must pay a fee as a transaction fee in order them to give me the price
So the bitcoins were sent, and it was a big mistake...
I've given the bitcoin address that was provided by bitcoins.org
please help me
How can I contact bitcoin.org's customer support?
Thanks

Well, there's someone who posted something about "Overmoderation of the hardware forum" last August 29 that needs a proper response from the board's moderator(s).
Although, Admin (theymos) already responded, it would be nice if you can white a comment.

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Off topic.
50 Decibels is as quiet as a typical living room & yes the topic's pretty trashy IMO.

Coinbase does change its addresses in every deposit "request" but all of the old addresses were still connected to your account.
Read this: Why did my wallet address change?

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I'll be honest with you, my "hint" was you might be a victim of a malware or a scam as my previous reply (2nd page) stated.

The transaction was made last August9 but check if either of your iPhone or PC is infected with a malware like HCP mentioned.

• 1. In your iPhone, copy an address from your Coinbase app, remember at least the 1st and last 3 digits, then paste it in any text box like Messages or Searchbox.
  
• If the pasted add is the same, you're not infected with a clipboard hijacking virus/malware or it's not active ATM.
• 2. In your PC, do the same, copy an address from coinbase and paste in in a text file.
  
• If any of it changed, that must be the cause of this.

That's to clarify the scenario, not to recover your funds.

Does that app's addresses list reflects the address of your coinbase account?
Or is it the official app: Android / IOS?

Unless you got the control (Private Key or the wallet where it belongs) over the address 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj, your coins were lost/stolen.

Because, it looks like the owner of that address just passed the first deposit 'cause it's a "petty steal" and to make you believe that the transaction went through without a problem, then, just left the "profitable" balance for the next "mixing".

My Two-cents here is that you're a victim of a scam/malware, or try to open your mobile app if it still have that address in the list.

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I suspect that 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj doesn't belong to coinbase (as their CS said)

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My previous reply partly explains it:
-edit-
Bob got the same idea, I'm pretty sure.

I think I got a hint on this.
Because the transactions and your statement can be linked in a "scenario".

But before that, just a list of possibilities:

• Those SegWit addresses (inputs from [f1c52f3edd8]&[afc314f97a] tx) belong to Kraken which are the two withdrawals that you've made.
• After 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj received the first transaction (0.09481172 BTC) you/he sent it immediately to 36ii5gNkZw2vAZ8TVk9dYXtVVbJxk68hiE which belongs to your Coinbase account that surely reflects as balance.
• Now that you're convinced that it is "legit" you've sent the actual amount that you want to move to coinbase (0.62574 BTC) to 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj again.

The real question is: where did you get this address: 12ngg3CB9VDvkbFDx7JKY92i9kYgDmiEaj?

BTW, Only OLD Coinbase addresses starts with "1"

All I'm saying is, do not diversify your ASIC miners, focus on one algorithm.
That way, you'll get a higher hashrate to get more of that particular coin than buying different ASICs to mine other coins which could lead to loss that will be deducted to the total profit of all of your miners.
You only have to research intensively on the coin/algorithm of your choice.

If you want to diversify your assets, use the profits or part of the remaining funds to buy them (not so different with buying them using the initial funds but you got the hardware for your "investors" to see).

This all because you're already at the halfway or quarter of your plan.
If you can cancel all of it and do the usual buy-n-hodl, that's a good decision too; as I said in the first reply: It's up to you.

Can you tell us the address where you've sent your Bitcoins from Kraken exchange?
Or link the (edited/censored) image for us to view.

The problem could be in coinbase's system detection as Thirdspace mentioned, but you've already contacted them regarding this.
Just need to re-enumerate your statement.
Since most exchanges are batching withdrawals, there might be an error in coinbase's side due to the huge number of inputs exchange withdrawals usually has.
Or there's really a typo in the second transaction's address.

We'll never be able to give some insights unless you can provide more information.

But what about this?:

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If you're going for ASICs, do not buy multiple brands and models, research for the one that has the highest profitability but not the ones that targets any "CPU-mining" & newly developed (including suspicious) algorithms .

The advantages of that are easier maintenance and "more efficient mining" of the coin of your choice.
That way, it will be easier to reach the capital return and even ROI in a shorter period of time, the other way around IMO have more disadvantages.
But if you want to expand and add diversity, your original plan (Add GPU Miners) can still be applied.

Today's a risky season for miners, it's up to you.

Unfortunately, this is not the case.
The output will be 15GzCaKf9Bd5DEvJpLnStzt4aL2QDBuTwW for Compressed and 1GY6bTT89Vw4DAzKsJ43g2CoDzDpE8JxKx for Uncompressed.

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Indeed and also, when you click the HASH 160 link of the SegWit Address format from a blockexplorer that didn't support SegWit like blockchain.com,
it will redirect you to address: 1s2iywx94HudryMHsU2g1K9x8DB1cahGc.

In my opinion, it was the pool's fault why it was sent to that address.

Your funds may be recoverable, try Abdussamad's tool.

Yes it is, "insight_bitcoin_tx_78ef...." is for bitcoin transactions.
Copy the characters between "tx_" and ".json" (just like the underlined part above) and paste in on any blockexplorers to view that particular tx's information like inputs, outputs and the amount of Bitcoins transacted.

No, using that cache, you can't.

Since you're using Electrum on Windows, try to look for the wallet files inside the electrum data folder:
C:\Users\(Your Username)\AppData\Roaming\Electrum\wallets [Hidden by default]

But I highly doubt it since yours is more likely connected to a hardware wallet (trezor).
I can't help you any further.

That's just a cache of a transaction which has no (recovery-related) information.
Just the raw tx or hex format of it depending on the client.

Like for example based on your given example (insight_bitcoin_tx_78ef....):
insight_bitcoin_tx_f782432c15e7656dd8c5b3f3832273f2a116ef374222373f6bbb59a63753d3d6.json

The underlined part is the transaction id of the particular cache.

I just need to clarify this, Nicehash isn't a cloudmining service.

It is sorta mining Pool but like a broker, instead of using the collected hashrate to mine an algorithm, they are selling them to anyone who needs it.
Unlike cloudmining, the sold hashpower didn't came from them, it came from collective hashing power from small-time miners who are "selling" their hashrate which is legitimate but unfortunately, not profitable at the moment.

@saooesnamax Read my first reply (#3). I already explained to you why it isn't a good idea.

I have checked the link and the "POH Explainer Video" but nothing's really explained but the possible positive effects of using their newly developed "just nodes coin".
Noticeably, they allotted more time explaining the downside of POW coins like Bitcoins than explaining their system.
Just like the quoted reply.

Not to mention, Proof of Honesty is the worst name for a system that was built for security.

Is there a better resource where "Proof of Honesty" was better explained?
Please provide some links.

You must change the derivation path depending on the address type.
In your case, those are more likely p2wpkh-p2sh SegWit Addresses.
However, by restoring using only the private keys, you will need to tell the client to restore the SegWit addresses from those prv keys .

Try this:
Restore them using Electrum by adding "p2wpkh-p2sh:" in front each of the private keys, like this:

then hit next, next.

-Edit-
I've tried and the correct addresses: 3JP77cLUwuwY6Rw16CZZRmZ7eDHKHQQcZA & 3KBtWR5zGsGWrPxfRx6HyG7CnpqssaftdA were restored.

In that case, start from block cluster (blk.dat files) blk00971.dat onwards.
Check for the dates, since SegWit was started on August 24, 2017, you might save some time by skipping the older blocks.  

This is not limited to Russians, why the hate? Joke.

If you can verify that there's a Malware or something in their code, open a thread regarding their activity in the Meta thread or scam accusation (in SA if it's not malware/virus-related) for others to further assess the issue.

Or moreover, if you're 100% sure, hit "report to moderator" and provide a short-but-complete evidence because it's a ban-able offence:

Exactly!

And as an addition, we can also squeeze more inputs and outputs in a single transaction using SegWit addresses.

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Quite anti-Mining? Caring too much about the price? (uhhh, I'm guilty too)
Bitcoin hasn't been paying miners to process transactions, they simply mine what's profitable.
This isn't the only SHA-256 coin out there, and the total hashrate won't affect the number of transactions per minute, just the network security.
Quitting miners: not much of a problem considering on how Bitcoin was designed.

The one who got a recipe of failure are Bitmain and ASIC Manufacturers, but they are currently bathing in profits for now.

The center of your attention based on your assessment should be: Bitcoin with low Network hashrate will be much more easier to attack with easy to access hardwares if/after most of the miners quit.