I am using Electrum. I sent it with 0,001 BTC/kb and it has been confirmed at the next block, thank you . However, the one with 100 sats is still unconfirmed :/.
If a portion of the newtwork forgotten my transaction that mean that I'll lose the BTC I sent ?
No, if the network forgot about your transaction you just need to remove it from your local wallet and can create it again (with a higher fee).
There's something strange. My transaction appears and disappears on my local wallet.
It is already forgotten by the network if you cant see the transaction in your wallet. I assume you got your coins back now?
At half. No I got them, but in 3-4 hours, the coins will be set in unconfirmed.