Some times after the match static screen the UI can hang. You just see only black screen and party list and can do anything. If friend call you in other lobby it helps. Looks like problem is actual for games in party. it’s occurred 2 times for me and 2-4 times for my friends for ~50 games.
Site issue. Hunter info pop-up. If pop-up was open and then closed it become narrowed and totally useless. Reload page is helps. Reproduced for FF and chrome.