I seem to have lost funds on my Electrum wallet. I keep most of my BTC in offline paper wallets. I import to an Electrum wallet as needed, to send to Coinbase, pay bills as needed, etc. My security practices could be considered extreme, to many people. There are 40 normal transactions on this wallet. I restored from seed, same issue.

On 2022-10-29 15:03 about $300 balance seemed to disappear from Electrum 4.3.2 wallet
The wallet's last transaction was 2022-10-09 made by myself.
The OS is latest Ubuntu Long Term Support, updated several times a week.
Never install bootleg, illegal or questionable programs/packages.
The OS install itself is on encrypted drives, with very long passwords.
Electrum is run directly from Python sources, without installing: python3 Electrum-4.3.2/run_electrum
The Electrum executable matches ThomasV's GPG signature.
Electrum's network connection is being proxied on TOR, through localhost.
Coinbase account and normal banking account is unaffected.
Phone is never used for wallet.
There is one user, and root is disabled.
Nobody else has physical access.
Every program, service and web site in use has a different username and long password, managed by KeePassXC
Lightning is not being used.
No social media is used.
No file sharing, there is no wallet malware. I can copy/paste addresses without them being changed.
I store a backup of the wallet on Pcloud's Crypto directory. Unlike most cloud storage, this has end to end encryption.
I store an external hard drive with /home data (including wallet info) off-site rotation encrypted with very long PW.
Looking at it's transaction ID of b7aee9ebf54c3f7f97ace1e63b81a5f073419e6a86ef69937711295090d6af79 I see a message, "Exact payment amounts (no change)

On https://en.bitcoin.it/wiki/Privacy#Exact_payment_amounts_.28no_change.29 I see:
Payments that send exact amounts and take no change are a likely indication that the bitcoins didn't move hands.

Does anyone have any suggestions on possibly what happened? I waited a few days before reporting in case there was some sort of wide-spead problem, but I do not hear of one.

TIA

jackjjohnson

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