I just saw this post and wanted to comment that the 16000 is the same design internally as the Airbus TCA stick, also built by TM.
These long-standing threads will sound very familiar to you:
It’s the wiring inside the sticks. They’re identical from an internal build perspective. Hopefully your problem won’t come back, but it’s possible it will.
My solution was to donate my stick to someone who needed one (they disabled the rudder I believe), and replaced it with a VKB setup. Solid as a rock. I’ll never buy TM ever again.