🐞 Comments on Sidebar Breaking when using Playlist

Concise Description

Whenever I have a playlist expanded or have a live chat active while having my comments on the Sidebar, the right side and videos on the under part of my Youtube is blank when not in Theater mode, and I can only access the comments, playlist and videos again when I use Theater Mode on.

https://github.com/user-attachments/assets/90d5a4d1-a4f2-4a81-a15c-46afc8b83862

Browser/s

Firefox

Other Browser:

No response

'Steps to reproduce' - Which of our features is required for the bug to happen?

Have Sidebar comments enabled

Since when?

Around a week ago

Does the bug still happen when you log out of YouTube?

None

..No? Then please paste your yt.config_.EXPERIMENT_FLAGS. Twice (With the error & Without)

No response

Are any errors or related log-messages shown in the Browser-Console? (F12)

No response

Tested as the only active extension? (incognito mode or another browser users):

None

Expected preferred behavior:

No response

ImprovedTube Version

No response

Your Settings (From the Extension's ⋮-Hamburger menu > Settings > Backup & reset > Export settings)

No response

Your YouTube-Document

No response

OS / Device:

Windows

Start by reproducing the issue in Firefox with Sidebar comments enabled and a playlist expanded or live chat active, comparing normal and Theater modes. Inspect the extension's sidebar and page-layout handling; done means the right side and lower videos remain accessible in normal mode.