After actualisation of eM all calendar records missing

After installation of the new version of eM all calendar (actualisation) all calendar records missing (from the past and future). I still have them on gMail and in my Android phone, but in eM all missing - persist only 1 record from yesterday and all birthdays records. All calendars I have checked to display. Whats wrong?

After a few reinstallations, registry cleening was calendar still wrong.
As a final step I removed account settings (in the Tools menu) and after deleting all data I set-up account newly. After synchronisation is everything fine - calendars entries are back in eM.