Problem to select ROI borders of the Crop VOlume module with the mouse

I changed the resolutions of the screen and tried another screen with different resolution but problem is still here.
And unfortunately, temporarily removing Slicer Settings didn’t hep either.

What is weird, and links my problem with a potential resolution problem, is that if I click a lot on the point of the ROI, I ends to select it. But it can be after 5 or 100 clicks… But again, I am still working on the same computer and with the same resolution as yesterday…

I will be able to switch to a different computer once at home and I will: download the latest stable version of Slicer, try if Crop Volume is working correctly, install my module and check again the Crop Volume.

If, as expected, everything is working well on the second computer, how can I totally supress all setting files when I uninstall Slicer ? I tried to uninstall Slicer 4.8.1 and to delete the NA-MIC folder in User\AppData\Roaming without any success after the re-installation of Slicer but maybe I forgot some config files ?