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Author Topic: Slippage madness?  (Read 124 times)
father_mocker (OP)
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March 28, 2021, 11:25:00 AM
Last edit: March 28, 2021, 11:38:21 AM by father_mocker
 #1

Hi everybody! Some help here will be really appreciated.

I did a swap on Pancakeswap yesterday - LIGHT for BNB. Before the swap I set a slippage tolerance of 10.

This is the transaction that got executed:

Quote
Tokens Transferred:
From ***** To PancakeSwap: LIGHT For 2,820 ($1,108.69) Lightning (LIGHT)
From PancakeSwap: LIGHT To PancakeSwap: Router For 2.727912290325843068 ($733.00) Wrapped BNB (WBNB)

As you can see, much more than 10% of price change.

Can anybody help me understand what happened here?

My assumption was that in case price fluctuations go over slippage tolerance PancakeSwap will rollback the transaction. It clearly didn't work like that.
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The network tries to produce one block per 10 minutes. It does this by automatically adjusting how difficult it is to produce blocks.
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ChuckBuck
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March 28, 2021, 11:37:50 AM
 #2

So you lost almost 400 dollars on this trade? This is crazy  Shocked Shocked Shocked Shocked It's impossible. What a pity for you!

Have you tried contacting their customer service and asking for support? In this case, in order to get the most detailed and accurate explanation, there is no other way, you must get the answer from them.

I have never used it, but for regular exchange services, they will show the estimated value you can get, have you checked it before making exchange? (Maybe you didn't consider it?). Can you provide a hash here to review the transactions you made? Recently, I use Uniswap, although I think the fee I have to pay is expensive, it just stops at a maximum of 60 $ (Expensive with small transactions). But it is impossible for a trade to cost you nearly $ 400. It's ridiculous. You need to contact them immediately!

There could be another cause as well, but I'm not sure. I used to deposit more than 30k Thrive coin into an exchange (Kucoin), but when that amount shows up in this exchange, it's just over 22k. I asked for their support right after. And the answer is that the amount of Thrive coin I lost is the transaction fee that I have to pay to load into the platform (I mean pay miners). That means I have to bear transaction fees other than ETH. I don't know what currency you swap and how it works. But the same thing might have happened to you. In short, you need to ask them  Wink

Additional, I cannot find LIGHT on Pancakeswap

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father_mocker (OP)
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March 28, 2021, 11:52:09 AM
 #3

Quote
ave you tried contacting their customer service and asking for support? In this case, in order to get the most detailed and accurate explanation, there is no other way, you must get the answer from them.

They don't have any technical service or support team. The dev team at github is also anonymous. They do have some telegram groups but it's full of noise and scammers.

Quote
Can you provide a hash here to review the transactions you made?

This is the  transaction in question:

https://bscscan.com/tx/0xd4b788e97f2bc1a38fa6db4e1b48a36b6141c0d2708a5915148fe4fb24d2e0da


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March 28, 2021, 12:00:37 PM
 #4

Based on the transaction it seem It did process your order but not sure whether its due to slippage. We all knew that slippage like uniswap changes the received tokens or sold from the original value we should received due to the higher set of it. But this could also change on the value of of the token price like bnb fluctuate that much? That's why the change of value happened. That's what I'm thinking plus the huge cut of the fee based on your usage slippage.

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March 28, 2021, 12:21:53 PM
 #5

Based on the transaction it seem It did process your order but not sure whether its due to slippage. We all knew that slippage like uniswap changes the received tokens or sold from the original value we should received due to the higher set of it. But this could also change on the value of of the token price like bnb fluctuate that much? That's why the change of value happened. That's what I'm thinking plus the huge cut of the fee based on your usage slippage.

I have checked the prices on the charts for yesterday and it didn't really fluctuate around the time of the transaction. Neither BNB nor LIGHT fluctuated around 19.24 UTC time.

This is driving me nuts.

I'm checking now the LIGHT whitepaper for the case that LIGHT applies fees itself on sellers. If that's not the case, then I have fell victim of a scam I don't even understand. Huh
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March 28, 2021, 11:24:26 PM
 #6

But what I currently see from the Tx ID is different from the initial price of the LIGHT you indicated in the OP

Quote
From 0x17fe40e5c8841459fb7f95707ae430394be343ac To PancakeSwap: LIGHT For 2,820 ($842.62) Lightning (LIGHT)
From PancakeSwap: LIGHT To PancakeSwap: Router For 2.727912290325843068 ($733.21) Wrapped BNB (WBNB)

What I think happened was maybe the initial valuation of your token was wrongly quoted bscscan.com.  I have seen it happen sometimes with Etherscan too. $842.62 is well within the 10% slippage tolerance.

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cryptoaddictchie
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March 29, 2021, 01:10:01 AM
 #7

What I think happened was maybe the initial valuation of your token was wrongly quoted bscscan.com.  I have seen it happen sometimes with Etherscan too. $842.62 is well within the 10% slippage tolerance.
This could also be possible. Maybe bscscan mate not etherscan since he is trading with smart chain tokens.


OP are you sure there is no function on the smart contract of Light tokens that governs tax percentage when selling? As you knew there were project incorporating burn percentage of their sold tokens might have a big tax on that which they are implementing?

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March 29, 2021, 08:41:00 AM
 #8

I'm checking now the LIGHT whitepaper for the case that LIGHT applies fees itself on sellers. If that's not the case, then I have fell victim of a scam I don't even understand. Huh
No, they are not deceiving you. Where did you check the price chart? Coinmarketcap? I can be sure that the slippage has occurred while you are on the trade. Even the hash you provide shows that the LIGHT value you give is just over $ 800.
Here is a picture of the slippage that I can see.

Price is down 25%, exactly matching the amount you see compared to the amount you get. It's possible that the chart you've seen before hasn't been updated hourly, so you haven't seen its slippage.

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March 29, 2021, 03:43:58 PM
 #9

Based on the transaction it seem It did process your order but not sure whether its due to slippage. We all knew that slippage like uniswap changes the received tokens or sold from the original value we should received due to the higher set of it. But this could also change on the value of of the token price like bnb fluctuate that much? That's why the change of value happened. That's what I'm thinking plus the huge cut of the fee based on your usage slippage.

Strange. I also thought there is a max slippage limit allowed, maybe next time you need to find an aggregator that limits it by contract OR to view the contract before you approve (does the contract not show the max limit price you have?). I guess this is what v3 uni is going to really help in the future.

Maybe LIGHT just jumped when you authorized?

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March 29, 2021, 05:45:06 PM
 #10

I guess this is what v3 uni is going to really help in the future.
Maybe LIGHT just jumped when you authorized?
Are you sure? I just had an exchange experience on Uniswap last week. And with my experience, there were no slippage warning. We will have 2 authorization attempts. The first time, we approve exchange for the currency you want. The second time, we approve the transaction fee that you must pay to make the exchange. No warning for slippage.

And if that happened, certainly he ignore it because he didn't really care what happened  Cheesy

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March 29, 2021, 11:17:15 PM
 #11

This could also be possible. Maybe bscscan mate not etherscan since he is trading with smart chain tokens.
what I meant is that I have seen this kind of price difference in Etherscan vs the actual price of the token in an exchange before. If you look as Bscscan the build is so much alike to Etherscan except that they explore different blockchains.

In other words, OP should not use blockchain explorers to determine the price of tokens as they don't update the data to the second like exchanges do. I think that's where the confusion came from.

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