This is a regression tested in //UE4/Release-4.27 cl 18319896

Instanced Editable Variables of type Blueprint Interface can't be set.

Steps to Reproduce
  1. Create or open any project
  2. Create and compile a Blueprint Interface named "BPI_Implement"
  3. Create a Blueprint Actor named "BP_Triggerable"
    1. In Class Settings under Implemented Interfaces add BPI_Implement
    2. Compile, save, and close then Blueprint
  4. Create a Blueprint Actor named "BP_Trigger"
    1. Add a variable of type BPI_Implement named "Triggerable"
    2. Set the variable to Instance Editable 
    3. Compile, save, and close the Blueprint
  5. Place BP_Triggerable into the level
  6. Place BP_Trigger into the level
  7. Select BP_Trigger then in its Details panel select the drop down menu for the variable Triggerable

Expected Results:
BP_Triggerable appears and is selectable in the drop down menu. (from the ticket: "The dropdown list that should contain all blueprints that implement the Triggerable interface is empty and you can't set the Triggerable variable.")

Actual Results:
The drop down menu is blank.

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ComponentUE - Editor - UX
Affects Versions5.0.1
Target Fix5.1
CreatedMay 19, 2022
ResolvedJul 13, 2022
UpdatedJul 14, 2022