In my case, the trick is importing the address with "timestamp"= date of the block of the first UTXO and let it do it until the end, after that, when I want to move, just repeat the command with "now" and it works perfectly.

About signrawtransactionwithkey maybe it works, I heard many times we couldn't do taproot transactions without PSBT's, etc and I did it, so, maybe everything have solution and the problem is just doing the configuration of the command with all variables.

If someone have success please report it.