Interface Functions are getting cleared/deleted after Editor Restart

I’ve been seeing 5 year old posts about this, and its still an huge issue and it makes everything so frustrating to develop new things in Unreal Engine. Anybody found a fix about this issue?

Steps to reproduce:

  • Create a blueprint interface.
  • Add interface function.
  • Implement the function on blueprint.
  • Restart editor.
  • Implementation gone.

Still having the issue almost everyday, and not a single fix on forums. Removing interface and a creating a new one is not a fix. I cant recreate an interface with 50 functions everyday.

1 Like

Just tried it on UE5.4 with no issues. Are you maybe using Save instead of Save All? Otherwise, you might try reinstalling your engine.