This is a really odd problem, which showed up not too long ago. I might have recognised it first maybe half a year ago. I tried to find the cause for the problem elsewhere, but wasn't successful, so, now I can only imagine that it is a synchronisation problem within BirdieSync. It may have been caused by the update to version 3.2.8.0, which I am still using.
This is the issue: I have a calendar in Thunderbird, which is linked to an ics file. It contains some reocurring events and some single events. The reocurring events have synchronised correctly. Unfortunately, all the single events appear on Android one day earlier than on Thunderbird. This calendar is fed on Thunderbird only. This is very annoying and I would appreciate a fix to this problem.
Thanks you.