,
I have tested this and I’ve had another look into this as well. Neither of us were able to get the wchar.h error. I checked my computer for “wchar.h” specifically and found the files included in my GitHub build.
Could you please list out your exact steps on how you build your GitHub version of the engine? Could you also attach a small sample project where this is occurring? If it doesn’t fit in the attachment section, upload it to Drive or something similar and provide me with the download link.
Thanks!