Upgrade from NC 14 to 15.02 lost file menu

Hi all, after upgrade from 14.0.6 to last stable 15.0.2 shared icon and 3 dots icon on file view are missing.
I can still click but I can’t see the images.

If I switch to dark theme all works fine.
I have this issue on 2 nextcloud server.
Can help me ?

Thanks a lot

I found that using Internet Explorer all works fine.