RuntimeError('DataError: Message too big') when signing a single input with Trezor One

[goodc0re]

RuntimeError('DataError: Message too big') when signing a single input with Trezor One

Trying to sign only 1 input. The input is not a masternode payout.

Trezor One FW 1.11.2 (latest)
Electrum FIRO 4.1.5.1 (latest)
macOS 12.6.2 (21G320)

The only thing that seems to distinguish inputs I can sign vs inputs I can not sign is the block height when the utxo was received.

It seems that older inputs can not be signed at all (Firo block heights starting with 3xxxxx) and coins received in newer (block heights starting with 4xxxxx and 5xxxxx) can be signed, even multiple inputs at once and even masternode payouts.

[goodc0re]

Still unable to send FIRO out of Electrum in 4.1.5.2

[goodc0re]

Latest test:

Electrum Firo 4.1.5.4
Trezor One latest fw 1.12.1

Trying to spend a single utxo and sign with Trezor One, I get the following error message: "RuntimeError('DataError: bytes overflow')"

Second try, trying to spend another single utxo from the same seed and derivation path: "RuntimeError('DataError: Message too big')"

Third try, trying to spend another single utxo from the same seed and derivation path: "RuntimeError('DataError: bytes overflow')"

Fourth try, trying to spend another single utxo from the same seed and derivation path: "RuntimeError('DataError: Message too big')"

Yes, still unspendable.