Tabs won't load unless I switch to them

Hi, starting today, tabs will infinitely load unless I switch them. E.g. if I click 'Open in a new tab' on a link, it will be stuck on the loading wheel until I switch to the tab. I didn't change any settings, but I tried resetting the settings and that did not work. The only flag I have enabled is the dark theme and I tried turning that off to no avail. Can anyone suggest a fix? Thank you in advance.