This isn't a problem with FTM. It's a problem with Ancestry. I have it happen all of the time, especially when I have intermarriages on the tree.
FTMM2 may be junk (I have the PC version so I only know what I've read), but in this case it ain't at fault.
FTMM2 may be junk (I have the PC version so I only know what I've read), but in this case it ain't at fault.