TREZOR: ProcessError: Failed to compile input

I am facing a modal dialog box error which says ProcessError: Failed to compile input when trying to sign with the last signature in a multisig wallet.

My environment:

• Windows 10
• Electron Cash 4.1.0
• Trezor Bridge 2.0.27
• Trezor firmware (last version)

Steps to reproduce:

• Create a new multisig wallet => OK
• Trezor connected green => OK
• Other cosigners send bits of money => They appear on Electron Cash main dialog.
• CTRL+T load the text transaction generated by another cosigner => this part works well, the dialog box open, the details of the intended transaction are fine.
• Click Sign, two confirmations on Trezor device follow.
• Just after the last Trezor confirmation, Electron Cash opens a modal dialog box ProcessError: Failed to compile input.

Could someone help me to get this problem solved?

Also, if I just try to send cash via Send >> Pay To, Electron Cash, I will be ask twice for confirmation on the Trezor device, and then, Electron Cash fails again with the same modal dialog both prompting ProcessError: Failed to compile input. This behavior is somewhat baffling because as the wallet is multisig, I don’t even understand why Electron Cash is letting me attempt to send money without the cosigning process.

[prusnak]

The coins are stored on invalid paths. For BCH they need to be stored at m/44'/145'. If you need to spend BCH coins on Bitcoin path m/44'/1' try downgrading the firmware to previous version.

[cculianu]

Thank you Pavol. 👍