Confirmed the same problem with Cyrillic: [20141030 14:21:52.291] SyncFolderScanner: Skiping file '/home/bomfunk/Docs/bomsync/русский тест.txt' with invalid UTF8 file nameUsing only Linux x64 systems to sync files with Russian names. The version is the latest available - 1.4.93. I didn't experience this problem before the few latest updates, the application seemed to be pretty reliable. Hoping that the fix will come soon.