Absolute import paths are not working in QDS 4.2.
All "importPaths" in qmlproject files are currently treated as relative to the current project directory, regardless of whether the path starts with "C:/" or "/", etc.
It is a common use-case to have user common components at a fixed absolute path.

Note: I tested QDS 4.1 (and earlier) and there was no such problem, so it looks like the bug was introduced in 4.2.