Hey Dann,
Sorry for the late response, I’ve been trying to reproduce this issue for a little while now, but I’m not having much luck.
I’m in 4.6.1 and have a project based off of the third person template. I added an EQS (it’s not attached to anything, just orphaned in the content browser) and then started jumping in and out of debug/editor modes. I tried just changing a line of code here and there, but it was unaffected.
Is there anything I may or may not be doing in this process that is different from yours? Any additional information about the steps leading to the error could help.
Thanks!