hi, I got to the last step for signing the raw transaction, but now get the error message:

Invalid private key (code -5)
The 1st private key starts with 'xprv.....' and I got it from the wallet text file. I tried the 2nd priv key and got the same error code. Its a 2 of 3 multisig wallet. Its a restored wallet with disabled 2fa.
You didn't follow the process correctly. You don't sign with the "xprv"... you need to create two standard wallets using the xrpvs... and get the private keys from those wallets... the private keys should start with either a "K" or an "L"...
Invalid private key (code -5)
The 1st private key starts with 'xprv.....' and I got it from the wallet text file. I tried the 2nd priv key and got the same error code. Its a 2 of 3 multisig wallet. Its a restored wallet with disabled 2fa.
Does the same procedure work also for extracting Bitcoin Cash from a Multisig Electrum Wallet? I still have them sitting there since all usual procedures didn't work...
Technically yes, but you can simply use "ElectronCash" (https://electroncash.org/#download)... open your "restored/disabled" 2FA wallet in ElectronCash and you should be able to simply send the BCH out 