This is a real hardship for us and 4.15 is a long way away. Is there any way to get a patch for the changes in this diff? It sounds like a couple lines in just the right place.
Change 3185126 on 2016/11/03 by Shaun.Kime
Some of the plugin templates define Editor specific plugins. If created and a Standalone build is run, the application will attempt to link in editor libraries in game mode and will run into issues when you hit any key. The fix is to specify an Editor module description for these plugins.
Additionally, there appears to be a mismatch in pathing types when dealing with plugin path and GameDir. Plugin path is absolute and GameDir is relative by default. We check to see if the gameDir is a subset of the plugin path, but this fails due to the mismatch. The fix is to force both to be absolute (enforcing normalization of both paths as well).
#jira UE-38065
#jira UE-37645