I installed Komparator4 1.0-3 synch tool on a 64bit system. It starts up properly. After choosing directories to compare, there are no files, directories displayed in the 'duplicate files', 'missing files' or 'newer files' window. Never mind, which directories I selected.
I tried on an ubuntu 17.10 desktop and ubuntu 16.04 laptop as well - same result.
https://imgur.com/a/PdIH8
Any ideas how to solve this issue?