Hm, I'm not sure if I'm able to tell what the cause of the issue is from this screenshot, would it be possible to record a gif? What shader are you currently using? Is this in-editor, or in a build? What Unity version is it?

I just published a new update, so please let me know if v1.13.2 works for you! I made some changes to the "Ultra" shader, so maybe that's the cause here? There was an issue with rendering bitmap fonts on the previous update.