If this is an issue that just popped up with the recent layout update, I would suggest submitting this to the Canvas Tech Support. Click on Help on the far left side of Canvas, then click Report a Problem. Make sure to include this picture you submitted. You can also link this discussion if you want to reference the shared details. This likely could be a bug that they are not aware is occurring. This community forum is mostly volunteers, not Canvas Tech Support, so they may not see your post. A help ticket not only alerts them to it, but if multiple people submit it, then they that can give them an idea of how widespread of a problem exists. It also means that when updates occur, you should receive a notification about it. They may even reach out with additional questions.
Definitely an annoyance, but hopefully one they can get fixed for you in a timely manner.