Quote from: robo2 on March 23, 2025, 06:58:18 PM

-snip- I'll try reindex wallet first. Maybe btc didn't return to the wallet after the last transaction on February 19th.

You should rather use rescanblockchain in that case instead of reindex,
That's only necessary if there's some issue in your blocks, block index or UTXO set.

Quote from: robo2 on March 23, 2025, 05:22:54 PM

Helo. After a month since the last activation of Bitcoin Core 25.0, I activated it again on March 20, also version 25.0, and noticed that some btc disappeared from my wallet. There are no transactions in the wallet during this time. I saw on bitcoin.org that there is BTC core 27.0. After launch v27.0, the same thing. I deleted everything from the wallet directory and downloaded the blockchain from the beginning, changed wallet copies, but BTC is still missing at the end. What could have gone wrong?

Bitcoin Core version has nothing to do with it.

If your node is fully synced:
Check your "Transactions" tab for any transaction that is not marked with check (✔).
If so, tell us what the transaction's status shows.