I was picturing clicking SEND on a Trezor, after reviewing the transaction, addresses, etc.... are all good to go ---- BUT then at that instant the power goes dark!
So it was the "
If after" scenario in my previous reply.
In that case, it'll either be "
sent" or "
not sent", not something in between where it'll go on a limbo.
In case of "
not sent", even if you've saved it in the client locally in Electrum, you can simply remove it since the rest of the network doesn't know your non-broadcasted transaction.
In Trezor suite, you can clear the cache for it to perform a rescan if that happened.