SIMUCUBE 2 true drive issue

Hello to all!
I have a simucube 2 pro, and after 2 months of use an uncomon behaivour started when opening the simucube true drive. When opening, the servo starts to vibrate until i press the “enable high torque mode” aftaer that the vibration stops and the servo works okey, but that is something never before haappened.
Anyone know what is happening?
here i show a video:

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