@kingstonp

Here is another, similar, thing. I click on a tab to open it and it disappears!, as if I had clicked the X. A whole big issue to get back to where I was as there seems no 'reopen tab just closed' facility.

Or different issue, or maybe tab closes by Middle (scroll) button, or problem in your mouse (at least had no such problem). And there is "Search by Tab" section in top right where you can find few recently closed tab + you can use Ctrl+Shift+T combination to open closed tab (should work probably in any browser).

@kingstonp same problem and on Win10, and for Win11with latest updates. And this issue actual already few month, if not more. For Dev-team more interesting to add shit emojis for tab, but not fix critical issue which causing problem with daily use of their browser (on working PC already switched to Firefox, because unreal normally work with this)