If a button's interaction settings are set to Down and Up and the button is disabled in between Down and Up (The button is clicked and held and becomes disabled before releasing the button). All input is then blocked until the input mode is reset.

Steps to Reproduce
  1. Open editor
  2. Create a new widget blueprint
  3. Add two buttons to the designer tab
  4. Create the blueprint in the attached image (Using the two button were just created)
  5. Open level blueprint
  6. Add the Widget blueprint to the viewport
  7. Click and hold the button that is about to be disabled
  8. Wait until it is disable to release the button
  9. Try and click the second button
  10. Notice that the button cannot be clicked

Expected: The first button would disable and the second button would still be clickable
Result: The first button in disabled and the second one is no longer responsive

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Won't Fix
ComponentUE - Editor - UI Systems
Affects Versions4.8.3
CreatedAug 24, 2015
ResolvedDec 14, 2018
UpdatedJul 14, 2021
View Jira Issue