Wingstabi Frsky violent twitching

[WickedTRX]

Hello,

Just received my Wingstabi that I bought from Lindinger, I use Frsky gear and in certain conditions I'm experiencing really violent twitching from the servos! When booting everything is OK, but when transferring settings to Wingstabi, accessing the radio calibration menu, or even just after sometime all channel start twitching, This happens with or without Servos connected, I'm using a Castle BEC and I've tried 3 different voltages. If i disconnect just the receiver from the Wingstabi and connect it again it immediately starts working normal. I have tried 3 different receivers SBUS receivers, X8R, X6R, XM+, and two different radios FRSKY x9d, and Radiomaster TX16S, all using latest firmware.
I use this gear with innumerous flybarless and Gyro units and have absolutely no problems.

Am I doing something wrong?
Thank you in advance for any help you might provide

[AndreasJ]

Did you upgrade your rf firmware to the latest one, if I remember right there was a problem with twitching servos in undefined intervalls

[WickedTRX]

Thank you for your reply,
Yes everything is up to date.
After writing the post I remembered that there's a difference between Frsky and Futaba, the length of the min, mid and max pulse, Frsky has 900/1500/2100, every channel that is not in use outputs 900, from memory thats lower than of a Futaba, so I changed all 16 channels to min to 1050, mid 1520, and max 1950, the twitching never happened again.
But then the Wingstabi quit working, I believe it's dead.
So i'm not sure the chage i made has solved the problem

[AndreasJ]

After changing the middle position you will need to teach in the new position with trim flight