Wait! I assumed that the firmware is something that you load into the hardware’S PCB’s component and not that you are running on your PC! That is the software version you circled out, Flitesim FFBTools! Are we talking about this?
Sorry for these questions, I have opened up their website and become clear!
It’s a little tricky this time because both , firmware and software have a version 3.1.0 right now
What version are you running currently?
Ok then check if the firmware is 3.1.0 too . And try to tune your roll axis - it should help