Locales set to En-gb but when I logged in tonight ...
Login shows US flag whereas before it had the UK flag. On checking system locales, there hasn't been a change - set to correct locales. If I click on the down arrow to see if UK is listed it isn't - nothing desperate. Just thought I would mention it.
Update 24.09.2021 - Noticed after I put my password in the flag changes to en-GB! LOL!