Re: Electrum to Electrum - transaction lost!

The following only on Tails:
I deleted the wallet, installed it back, many times. Tried to fix it somehow, playing around. Now it doesn't show 2.600, not even that damn 1 transfer, like it never happened at all. I still used the same recovery seed for the wallet as before.

You use same seed, but do you know that same seed can generate different types of addresses? In the process of wallet recovery, there is window where is possible to choose derivation path/address type. You need to select same address type on Electrum (Tails), as it is on Electrum (Windows).

If your Electrum (Windows) is legacy type, it starts with 1, for native segwit it start with bc1, and for nested segwit (p2sh) with 3. Pay attention to this when restoring wallet, this is a very common problem for many users.

This only applies if the seed was originally generated using some other software. If his seed was generated by electrum then there is no need to manually choose between different script types. The seed itself is enough.

@andrroos wallet restoration related problems are covered in this FAQ: https://bitcoinelectrum.com/frequently-asked-questions/#why-does-restoring-my-wallet-from-seed-lead-to-a-different-wallet . Do go through it and tell us what you find out. If this FAQ doesn't solve your problem then do share the answers to the questions posed there so we can troubleshoot further.

Native electrum seeds don't work in other software.

Abdussamad,

Guid 2.e.:

If the seed was originally generated in Electrum its possible you may have been affected by a file corruption bug.Yes, I was effected by a file corruption bug!This bug affected versions prior to 3.3.x. If you created or opened more than one wallet during a single session and the storage device your wallet was stored on was malfunctioning your wallet may have been corrupted.What is a single session? It seems to have disproportionately affected people using portable Electrum off a usb drive. The only way to recover your wallet is if you remember the seeds or private keys of any of the other wallets you created/opened during that single session.And even if you know the seeds from other wallets, how it's gonna help?

Single session means during one sitting. Maybe you created a test wallet to fool around with. Then your real wallet straight after that. Something like that.

If you have the seeds of the other wallets you created in that session you can try restoring from seed