UI jiggles while picking color

After getting the last two or three updates, when I click and drag to pick a color for a light, the panel jiggles up and down, screwing with my color selection. It looks like the “on/off” progress bar near the top is swapping to and from a loading spinner, changing the height of the panel. I noticed it first on android, but I’ve also seen it in Firefox now. Is there an easy fix for this?

If you’re on 0.57.1 I’d suggest raising an issue.