In the log, it says EXCEPTION_ACCESS_VIOLATION, which could make sense if it would happens every time I compile, but it only crashes after the fifth or so attempt to compile, every time I reload the project. The rest is close to non-sense to me at the moment. I’m digging, but no luck so far.
This is actually a known issue that has been reported as resolved for 4.15.
You should be able to grab the fix commit and merge that into your engine if you’re using a source build, otherwise the fix should be available in the 4.15 release.