I've been testing quite a lot the last couple of days and I had problems with some marker-names that I choose. I wanted my markers to be marker_01, marker_02 etc. Marker_01 worked. Marker_02 didn't. I eventually got it working by just deleting it and doing it over. Just the part with the modules. The same with creating tasks. It just does not work sometimes. So I remove all syncs and do it over. If it doesn't work then I delete the modules and do it over. I think it's just a little buggy at the moment.