This only get's fixed by closing and restarting the browser. Anything I can improve ?
This happens with the ReaperControl template downloadable in "Made with Open Stage Control" or the latest version here:
I have the same issue on iPad as well (and was about to report it as well)
I noticed that there's an easy way to fix it : touch and drag on the background of your session = display is refreshed. (you need to have some free space in you interface.. if it's 100% full of widget, the only way is to close and restart browser)