I've recently bought a QHY163M, and found that it was not compatible with kstars 3.4.X running on my Mac OSX 10.13. Every time I tried to start the profile thet included it, the INDI driver crashed.
After a lot of trial and error, I found the very same library (with a different date) inside the EZCAP software that can be downloaded from the qyccd site. I copied that file (libqhyccd.20.dylib) from the /Content/Frameworks folder of the App package to the same one in the kStars package, and everything has worked fine since then.
Since I searched for a solution and did not find any clue, I thought it would be nice to have it here.