Description

Subclass disappears from class variable drop-down upon reopening the project. There is a workaround for the issue but it is strange in nature. Opening the level blueprint and adding the node in screenshot_001 will add the subclasses back to the menu (and work when opening the project)

Regression:
This issue occurs in 4.15, 4.14.3, and 4.13.2 Binary versions

Steps to Reproduce
  1. Create a new blank project (No template or starter content)
  2. Create a new Actor class blueprint > Name it "Parent"
  3. Right click Parent and select the option "create child blueprint class" > Name it "Child"
  4. Duplicate Child and name the new one Child_Duplicate
  5. Create a new Actor class blueprint > Name it "Actor_BP"
  6. Open Actor_BP
  7. add a new variable of Parent and make it a Class > name it Parent_VAR
  8. Make Parent_VAR editable and expose it on spawn
  9. Compile and save Actor_BP
  10. Add Actor_BP to the level and go to its details panel
  11. click the drop-down menu for Parent_VAR (Expected Result)
  12. Save all > Name open level "TEST" > and close the project
  13. Re open the project > Open level TEST and select Actor_BP
  14. Go Parent_VAR in the details panel and click the drop-down menu

Result: Child and Child_Duplicate are not longer available to select as options
Expected result: Child and Child_Duplicate are still available to select as options

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Fixed
ComponentGameplay - Blueprint
Affects Versions4.13.24.14.34.15
Target Fix4.20
Fix Commit3982289
Main Commit4006923
Release Commit4095966
CreatedMar 13, 2017
ResolvedApr 3, 2018
UpdatedMay 31, 2018