Hi @anon21401411, yes I know, thank you for the clarification. But my question is why the ownCloud libQt5Core.so.5.10.1 library gets ignored and all the ownCloud Qt libraries find the system library instead?
Even tried to modify the symlink libQt5Core.so.5 in the system library directory to point to the ownCloud library and then issued sudo ldconfig but that didn’t work: I got a no such file or directory error. The same if I copied the file there. So apparently the file has to be corrupt somehow in the package already. Or not?