You could try setting the environment variable QT_DEBUG_PLUGINS to 1 and see if this gives you more hints in the application's log output.
Since there is no such thing as "the" vs compiler as they are basically all incompatible with each other, check that it is exactly the same version, bit-ness, etc.
You could check the environment in QtCreator's project/run settings so see if your VS setup is missing any of these are has different values.
Cheers,
_
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