I have this stick (same as OP). I'm kinda wedded to it (muscle memory and all that) but I'll admit I'm on my 4th one now. I payed around £30 for each one so I'm cool with that (still good value) plus ... if the fault you describe is the twist/yaw becoming glitchy, I discovered it's easy to fix. Remove 4 screws on stick handle to open it up and you'l find that one of the wires on the twist sensor has come off. Resolder it and bingo, good to go again. I now have 3 spares!
I opened one and found the wires still connected - but internally flakey/partially broken due being
way too fragile.
A clear fault design, no Engineer would ever connect such thin wires that get bent over and over - unless the Design was designed to fail, like in this case.
I've viewed a very nice instructional Video on how to remove these inadequate wires of the T.Flight Twist and replace them by more robust ones.
I refuse to be a "Thrustmaster built-in-design-flaw fixer" though and disassembling a factory brand new HOTAS to fix it right after unpacking... kinda defeats the purpose IMHO.
In the end, increasing decalibration issues on roll and pitch would have meant the end of the sticks anyway, was already running 20-30% deadzones all around by the time of the Twist axis failure.
(I originally planned to abandon Thrustmaster over this designed obsolecence - a total NOGO for me - but simply couldn't obtain a suitable different replacement quick enough, thus I ended up with the T.16000M)