applied all the cahnges:
I started with a brand new user and a fresh sync yesterday, but file sync via Windows Client is still about to die / seems to never finish :-/ :
While the majority of the data is already online (26 GB in about 4.500 files; total = 29 GB in about 8.500 files) the remaining files (note screenshot above) take forever. It seems like every ~1 hour the progressed files jump 100 higher (from 500 to 600 … always in 100 files-steps). But as far as I remember from my sync issues above: Even it reaches the end it starts all over again … with again syncing this mysterious amount of 3.883 files in 2,5 GB - no clue what are so special with them.
It might probably has to do with the many small files as mentioned in other posts.