Custom events with a struct that has had its pin split will throw an error when adding variables to the blueprint

Custom events with a struct that has had its pin split will throw an error when adding variables to the blueprint. The Struct appears to throw an error when making changes that are seemingly unrelated to the custom event.

Notes:

Error: Event node Custom event is out-of-date. Please refresh it

Compiling removes the error

1. Open the editor
2. Create a new struct
3. Create a new widget blueprint
4. Open the widget blueprint and go to the event graph
5. Create a custom event
6. Add the struct that was created earlyer to the custome event
7. Split the pin for the struct
8. Add a variable to the blueprint (not the custom event)
9. Notice that the custom event now throws an error

Expected: The struct would not be affected when adding a variable to the blueprint
Result: The Struct appears to throw an error when making changes that are seemingly unrelated to the custom event

[4.12.5] [bug] Splitting struct pin on custom event in widget shows error label when modifying widget's variables