IMAP Bug with 6.0

[tchara]

Seems similar to

Stopped recieving mail

All accounts, no mail in two days. All smtp. Aol, gmail, other domains, all. I know Im getting mail in those accounts (PC) but not via K9. Been working for years, until Wednesday at a liitle after noon PST.

As simple as it sounds, have you tried sorting the inbox by something other than date and then back to date again?