Very odd! There shouldn't be! What's in your Filters & Options section? If it works in incognito, the only thing I can think of is that you've got some stuff in there or in your bookmarks (less likely) that might be causing issues.
If there isn't anything there that you can see, we could try debugging if you right click anywhere on the page -> Inspect and then tab over to the Console tab that should show up in the new pane Chrome opens up. If there're any logs that show up, that could be helpful.
Re: possible bug when browsing grouped requests?
Very odd! There shouldn't be! What's in your Filters & Options section? If it works in incognito, the only thing I can think of is that you've got some stuff in there or in your bookmarks (less likely) that might be causing issues.
If there isn't anything there that you can see, we could try debugging if you right click anywhere on the page -> Inspect and then tab over to the Console tab that should show up in the new pane Chrome opens up. If there're any logs that show up, that could be helpful.