Anyone else have problems with 3.5.23 since yesterday?

All of a sudden yesterday I have a red X in the menu bar across the envelope and I have to manually refresh it for new and old mail. It is no longer automatically doing it. Even though each account is set for 1 min.

 

UPDATE

Decided to uninstall 3.5.23 and reinstall and the red x is gone and it seems to be keeping up again. Pretty weird.

I think I know what your problem was.
Right below your 'check now' button is an 'Enable' button that needs to have a checkmark beside it.
When it is unchecked, there will be a red X over your envelope icon in the task bar.

Give it a try :)