Steps to Reproduce
- Create a Blank Project (4.17)
- Edit->Project Settings->Engine-Input
- Add an Action Mapping, name it anything (I did Action1)
- Create any New Blueprint
- Add the Action Event (Action1)
- Compile, Save, Close the editor, Reopen the project
- Open the Blueprint
- You will notice that the blueprint is uncompiled and unsaved
Note:
-This is a regression from 4.16.3
-AxisEvents are unaffected
Pic attached is showing the newly opened blueprint after restarting the editor: