In case this helps anyone else, .Net 4.6 will cause the external UI variant of an installer to fail. It is possible to mostly fix this by using a Debug build of the WixSharp.Msi DLL.
It looks like this module may be affected by a .Net 4.6 JIT issue. Looks like .Net 4.6 may be hazardous to your health.
On Windows 10 there is a restart issue after an uninstall. This too appears to be related to .Net 4.6 problems.
It looks like this module may be affected by a .Net 4.6 JIT issue. Looks like .Net 4.6 may be hazardous to your health.
On Windows 10 there is a restart issue after an uninstall. This too appears to be related to .Net 4.6 problems.