Three days ago I shut my computer down for the night and the next morning when I started family tree maker it would not sync with my online tree. Finally 3 days later i got it straightened out but losing some of the links to 50 records (I do not know which ones.)
I have been using FTM and the online tree for months with no syncing problems. I do not believe it was my mac that caused the problem but some hick up in ancestry's database - has it become to large and cumbersome to be useful and looking at reviews and FAQ's I am not the only one with this issue!