FJ Software

To reproduce:

1. Create an event in Google Calendar with i.e. weekly recurrence.
2. Delete one instance of the recurrence (e.g. xxx the event, choosing "Delete" and then choosing "Only this instance").
3. Synchronize with your phone using MPE.

Now, instead of skipping the recursion on the day you chose, that day actually gets two instances of the event.

The phones of SE doesn't support rule-exeptions

I still see no reason why there should be two identical instances on one particular day. One workaround could be to delete the original recurrence on the phone and replace it by two new ones.

I'll take a look at it

It was a bug. Google creates on this day a new canceled event. The fix will take effect in the next update.

Superb! Keep up the good work!