REALLY NEED YOUR HELP! Bitcoins disappeared!

[digit]

Any help? Please!!!!

Open Console and enter
dumpprivkey <bitcoinaddress>  Note:wallet needs to be unlocked first before using this
for each address in turn.  you can copy these to notepad temporarily
(don't forget the change addresses that you may have, and dumpprivkey for each of those as well)

quit bitcoin-qt.

backup wallet.dat to another location. then delete it.

then restart bitcoin-qt, it will create a new wallet.dat, enter in console
importprivkey <bitcoinprivkey> [giveitanameornot]
for each privatekey you from old wallet that you want in this new wallet.dat

parameters in brackets are optional, if you only have one privatekey to import, you can tack on rescan=true to importprivkey eg:importprivkey <bitcoinprivkey> [giveitanameornot] rescan=true and it will rescan without the need to restart the wallet.  if you have more then one privatekey its a simpler task to import them all first, then restart the bitcoin-qt.exe with -rescan using CMD or a shortcut with that added, when its done you will have your bitcoins back.  

Alternatively you can export the privatekeys and then import them into electrum to spend immediately and skip the long waiting for rescan or blockchain download.  

its a good idea for future to only spend your bitcoin when bitcoin walletqt is fully synced and shows a healthy number of connections to peers, it will prevent this happening to you again.

if I helped, feel free to TIP

[digit]

The good news is it sounds like they aren't lost just not showing up. If all else fails you could delete the blockchain files and re-sync, but make sure that you do not delete wallet.dat for obvious reasons.

its not the blockchain, its the wallet.dat that has wrong info about spent coins.  reverting to a backup wallet.dat before the attempt to spend those coins would be the easiest solution as it will not contain that lost tx and coins will spendable.  In the absence of a suitable backup, then next best option to is export and import the privatekeys from the current wallet.dat into a new wallet.dat, then rescan.

[Razick]

The good news is it sounds like they aren't lost just not showing up. If all else fails you could delete the blockchain files and re-sync, but make sure that you do not delete wallet.dat for obvious reasons.

its not the blockchain, its the wallet.dat that has wrong info about spent coins.  reverting to a backup wallet.dat before the attempt to spend those coins would be the easiest solution as it will not contain that lost tx and coins will spendable.  In the absence of a suitable backup, then next best option to is export and import the privatekeys from the current wallet.dat into a new wallet.dat, then rescan.

Gotcha. That should be a pretty easy fix. I'll edit my previous post so the OP doesn't waste his effort.

[kashish948]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

[HardForkComing]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

Coins can't just "disappear" like that from the chain. I had the same issue once. It get fixed after I did what I mentioned in the previous page.
Your case is really strange.

[digit]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

what address were the coins in before you sent them?  They will still be there and viewable on blockchain, unless you spent partial inputs previously from it, then you will have change addresses which will be in your original wallet.dat but hidden from main view, but the coins will be sitting there on the blockchain, so you would need to import the privatekey for the change addresses.

[shorena]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

Did you dump the private keys and reimported them into a new wallet?

[kashish948]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

what address were the coins in before you sent them?  They will still be there and viewable on blockchain, unless you spent partial inputs previously from it, then you will have change addresses which will be in your original wallet.dat but hidden from main view, but the coins will be sitting there on the blockchain, so you would need to import the privatekey for the change addresses.

checked all change addresses. its none of them

[kashish948]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

Did you dump the private keys and reimported them into a new wallet?

yes! it doesnt show up

[digit]

Did everything! -reindex a couple of times, replaced the wallet.dat with a backup and then rescanned! But nothing
The coins are probably lost forever! Wasn't a big amount but it is a big question mark on the software! Hopefully someone here will be able to tell me what really happened!

Did you dump the private keys and reimported them into a new wallet?

yes! it doesnt show up

then only other possibility i can think of is that you tried to spend coins/inputs that no longer existed currently because the wallet that did not have up to date information on the addresses - you said the wallet was not in sync with blockchain so it would had a incorrect balance displayed at the time you tried to spend.

someone else might know another reason for your problem, but afaik if the coins are present in the addresses on blockchain they should now be present in your new wallet.dat.  bitcoins dont cease to exist, they either move to another address or stay where they are.  use blockchain.info and see the balance for each of your addresses then check against your new wallet.dat, it should all match now.

[dzimbeck]

I'm bumping this, this has happened with me before on multiple watchonly addresses. It's a bug with Bitcoin and wallets. I think they connect to a node that drops and then another node doesn't know about the transaction and the wallet skips it or something crazy.

For me rescan didn't work until I restarted the client perhaps in some cases delete and resync the chain and check to see if you are on a small fork. Regardless there is a weird bug in Bitcoin with txids and I've seen it twice and I send a lot of transactions. The daemon skips transactions sometimes. I don't think this has been fixed an issue should be opened on github.

[Newbeatondablock]

Wow these things should be investigated.....
Critics will use this against the system ...