Thank you
It would have saved a lot of toing and froing if you had advised full details the first time
It is a bit hard for anyone to even want to help you if all the details are not declared
I would expect the file to sync correctly but my first question is do you regularly compact the file?
The file size appears to be well within FTM limits, i.e. it is not "too big".
I run one in FTM3 about twice the size with any issues
John D