QtCreator keeps running CMake over and over

QtCreator randomly stucks in CMake configuration loop, running cmake -S ... -B ... over and over again, and re-opening the "General messages" panel even if user closes it.

It may trigger by switching configs in UI. But may also stop randomly, for example, by loading and saving CMakeLists.txt file.

I'm using build directory set to

.build/%{BuildConfig:Name}

, so that generated files are kinda in the source tree, but deep inside .build folder.

There are some similar issues reported in various years, but I'm not sure they are related.

• Latest Qt Creator 4.14.2 from Qt installer
• Latest CMake 3.20.0-1 provided by system
• Arch Linux 5.11.11-arch1-1