Hi Mustard867,
Thank you for all the information you have provided and for narrowing it down to being a problem with “2015 or using the windows 10 SDK or both.” I have used this information to file the following bug report: JIRA [UE-22866]. When this issue is resolved, we will update this post to let you know.
Thanks again for bringing this to our attention and for your contribution in isolating the source of the issue.
.