First, I am a Korean. I have been using the v1.3 version to the current v1.4.83 btsync. (Android platform) Well, I had no problem using 1.3. But the file name is not a recognized problem in v1.4. Often the problem is not recognized properly, like the Korean file name. For example, a non-recognized btsync such as "1234-산" file name. So, the file is not synced. The problem is only in the Android version.