Qt Creator randomly crashes (probably related to autocomplete)

When writing code in C++, Qt Creator suddenly crashes (after a few minutes or hours). Almost certain that it happens only when invoking the autocomplete for class member names, but not entirely sure.

I also have Anaconda (python packages) installed, which installed a version of Qt library, which I thought could result in a collision with Creator's (PATH included both), but after uninstalling the anaconda Qt package, problem persists.

Dump attached.