Blurred Slide

Hi all

I am obliged to make distant learning and I use Jitsi Meet to make my course connecting to meet.jit.si

I send my slides with my camera in the bottom right of the slide.

Everything was fine but since some days, the content of my slides are blurred when I also send my camera. If I get off my camera, the slide becomes clear again !

Is it possible to have both clear as before ?

After some interaction with the slide, the slide becomes clear again in the presenter mode too