I've got the 3.1 version and I have some strange behavior on the multi layers.
For example I have one multi layer inheriting from 6 other layers. In total there are 132 markers. The count is correct now :-)
But the listing of markers under the map in the "Edit layer" mode doesn't show the 132 markers. But:
- shows far less markers than actually visible on the map above it.
- shows markers that aren't actually assigned to that layer!
There seems to be a whole layer missing in the list of markers and another added that shouldn't be there?