This is happening to me as well. I’ve found that I can click on the scroll line to jump up higher it will reload correctly. Going back a page helps too or using the menu to jump to another thread fixes it too.
Unfortunately I haven’t seen this issue when I’m using Firefox. However, I use the NoScript extension (brings other issues) and am using a very old Windows OS.
I use Edge and have not had any issues. I also clear my cache, etc., at least once per day. I don’t like all the temp files and cookies filling my RAM and hard drive.
I use the uscca provided “app” on my phone, which seems to be some kind of shell for Chrome. I was having the same problem and logged out of all my USCCA apps or sites and re-logged into everything. Problem solved.
Yes, I use private, too. That does not stop tracking, but minimizes it, as it is supposed to clear your internet temp files when the browser is closed. I have found that not entirely true, therefore, use stronger methods to clear cookies and temp files.