Description

Widget references remain even after the referenced widgets have been deleted. This happens if the widget was replaced with another user created widget.

Steps to Reproduce
  1. Open a blank project
  2. Create a new widget blueprint
  3. Name it "ParentWidget"
  4. Create a new widget blueprint
  5. Name it "ChildWidget1"
  6. Create a new widget blueprint
  7. Name it "ChildWidget2"
  8. Save and compile
  9. Open "ParentWidget"
  10. Add "ChildWidget1" to the canvas panel of "ParentWidget"
  11. Select ChildWidget2 in the User created section (so that it will come up as a suggestion in the right click menu)
  12. Right click "ChildWidget1" > Replace with > "ChildWidget2"
  13. Delete ChildWidget2 (This should leave just the canvas panel)
  14. Save and compile
  15. Right click "ParentWidget" > Reference Viewer

Result: ParentWidget still shows a reference to ChildWidget1
Expected: The ChildWidget1 and ChildWidget2 would no longer be referenced after they have been deleted

Have Comments or More Details?

There's no existing public thread on this issue, so head over toAnswerHub just mention UE-57045 in the post.

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Fixed
ComponentTools - UMG
Affects Versions4.19
Target Fix4.20
Fix Commit4040117
Main Commit4052378
Release Commit4095966
CreatedMar 29, 2018
ResolvedApr 30, 2018
UpdatedMay 31, 2018