3DX-R21X FD06 blue pop up issue

Hello,

After migrating to R2021x FD06 we randomly face some issues with a blue panel that pops up when using 3DX (no specific scenario, it's random). When this happens we are unable to close it since it keeps popping up and we have to close and relaunch 3DX (see video).

Is this issue known to anyone and is there a work around ?

Thanks