[4.7.6] Duplicating a blueprint will give a compiler warning for calling events in other blueprints

I have found an issue when duplicating a blueprint that contains an event from another actor.

The issue is able to be reproduced 100% of the time when following the steps. (Using 4.7.6, and have not attempted to reproduce on a later version.)

1.) Create an actor with a custom event

2.) Create another actor that will call the custom event. Compile it and it will work.

3.) Duplicate the actor that calls the custom event and hit compile. Notice a warning is given on the custom event.

I have not done further testing to see if my methods on calling the event is the issue or not (using ‘get all actors of class’ to find the actor with the custom event). Below are some screenshots of the blueprints I am using.

After making a duplicate of this blueprint, I would get a warning when trying to compile it.

The warning can be removed by deleting the node, creating a new one, and reconnecting them. The last image is what the custom event is.

If you have any other questions about how to reproduce this, I can try my best to help.

Hi m500,

I was able to reproduce this and have entered a bug report, UE-17505, to be assessed by the development staff.