TriStar version 1.0.2
MSFS Update 4 version 1.6.34.0

Not sure if I'm missing anything here, I've repeatedly started up the aircraft from cold & dark performing all FE functions manually. But each time I'm unable to set the stabilizer trim to the T.0. perf calculated value such as 3.69 (per my latest attempt).  Despite all 4 hydraulic systems pressurized, I'm unable to set the stabilizer trim. When I rotate the trim wheel to the target setting, it slowly rotates back to 2

Solution: In Settings make sure AI Auto Trim is disabled under Assistances

Edited April 21Apr 21 by dragon8

Are you able to upload a video please, also do you have any assistance options enabled as this might be why that is happening

@IniJamir You called it and thanks for the help.  It's assistance options.  For some reason I had AI Auto Trim enabled under Assistances. Setting the stabilizer trim works as expected when that's turned off. 

Edited April 21Apr 21 by dragon8

13 hours ago, dragon8 said:

@IniJamir You called it and thanks for the help.  It's assistance options.  For some reason I had AI Auto Trim enabled under Assistances. Setting the stabilizer trim works as expected when that's turned off. 

Glad I could be of assistance 😉 enjoy 🙂