Hi,
It’d be great if you could identify when this became a problem. We release a monthly update, and you can quickly identify this in the bottom left corner of My OSMC. We host old images at Download - OSMC.
When you find a ‘good’ version, do let me know, and I’ll walk you through upgrading in a partial way that allows us to identify the specific problem.
This will benefit other users, so your cooperation is very much appreciated
Cheers
Sam