Door and IR sensors disappeared from GUI - no change in config

I don’t know what has happened. Suddenly, my door and IR sensors where missing from the GUI despite them still being visible in the state (<>) view. I haven’t done any change to these binary sensors in my config.

The really odd thing is that this has happened on my desktop in both FF and Chrome, but they still show in FF on my Android tablet. I don’t know if these browsers have updated on my pc, but not on the tablet. Can’t think of anything else.

Anyone else seeing this?