Unable to update tail number with Livery generator with SR22 Entegra 2.0.1

[Sr22captain]

I've upgraded to XP12 and TorqueSim SR22 Entegra 2.0.1. I'm no longer able to change the tail number on the aircraft. This always worked when I had XP11 and TorqueSim Entegra version prior to 2.0.1.

Any tips?

Thanks.

[Coop]

Make sure you have loaded into a livery besides "Default". Most of the other liveries there will support custom tail numbers (except the ones where a tail number is the livery name, as those are designed to match a specific real aircraft)