Try this ?
I generally use this in VC++ env to disable it.
Project> Properties -> C/C++ -> Precompiled Headers
Create/Use Precompiled Header -> Not Using Precompiled Headers
Hi, I recently ran into the same issue.
To solve it, go to Help -> About Modules, check Show all, enter "pch" and disable the ClangPchManager module. Then the precompilation of the headers will be disabled.