Ah ok, thought it was about timelines, but didn’t want to start a new thread.
The timelines are perfectly fine until you expand video tweets. Then all media like images and videos become much broader and overset the container. When you collapse the video everything goes back to normal.
As I am on vacation right now, I can only test this behavior on mobile (iOS Safari).
Just tested it on Chrome for iOS. Media keeps the right width there, so this should be a Safari related problem.
Thanks
Markus