Duplicating an actor that calls a custom event from another actor receives compile error

Duplicating an actor that calls a custom event from another actor receives compile error until the node is removed and replaced.

1. open editor (any project)
2. create two blueprints (test1, test2)
3. In test1, create a custom event named "ATest"
4. Compile, save
5. Open test2
6. Create these nodes on "Begin Play" - Get all actors of class>test1>from "as test1">ATest
7. Compile, save
8. In Content Browser, RMB test2>Duplicate
9. Attempt to compile duplicated test2