(Using BT-Sync 1.1.27 oin Windows 7 64 Bit and 1.1.7 on Android 4.2.2) I also observe that folders already synced and were not changed occasionally are marked as out of sync After a while they are marked in sync again (but without any transfer in the history) It looks as if power-save might play a role in this, If the device is in use it seems that the files keep in sync. I observed the following problem: If a file gets deleted at the PC while btsync on Android is not running, the Android-Client will retransmit the file to the PC after restart of btsync. If btsync was running and only no network connection, the behaviour is OK. Then the file will be deleted on the Android-Client. (One might to stop btsync on Android due to power consumption - OK, not very much in idle state but noticeable) Wishlist: - better notification for the syncstate. The optimum would be to indicate if anything has changed locally, separately indicate if anything has changed remotely and indicate if there are active transfers. Within the app a logfile-viewer would be nice so that one can see what currently is happening.