Description

When adding a Breakpoint within the "Blueprint Class Actor" editor using "Event Tick," the mouse cursor becomes constrained within the editor window box immediately after pressing Play. The mouse cursor will not become constrained if the "Event BeginPlay" Node is used instead of the "Event Tick" Node.

This is not a Regression.

Please see attached image files.

Steps to Reproduce
  1. Create a new project > Create a new "Blueprint Class Actor" > Double-click to open
  2. Lower left (My Blueprint section) add 2 "Variables"
  3. Name one "Text" and the other "Count" > Change "Text" type to "String" and "Count" type to "Integer"
  4. Drag off of "Event Tick" > Type/select "Print String" (Collapse) > Drag and "Get" the "Text" variable > Insert "Text" to "In String" on the "Print String" Node
  5. Drag and "Set" the "Count" variable > Connect "Print String" Node to the set "Count" Node
  6. Drag off of set "Count" Node > Type/select "Integer + Integer" > Drag and "Get" the "Count" Node > Attach the get "Count" Node to the "Integer + Integer"
  7. Drag off of set "Count" Node > Type/select "Print String" > Connect set "Count" Node to "In String" on the "Print String" Node > Right click on "Print String" > Select "Toggle Breakpoint"
  8. Compile and Save > Drag "Blueprint Class Actor" into Level > Press "Play" > Move mouse cursor around

Results: After pressing "Play" the mouse cursor is constrained within the Blueprint editor window box. Trying to select anything (Class Settings, Stop, +Add New, Etc.) outside this window is not possible.

Expected results: If these steps are used off of the "Event BeginPlay" Node instead of the "Event Tick" Node, this issue does not occur. Expect the "Event Tick" Node to work the same as the "Event BeginPlay" Node as it does not constrain the mouse cursor.

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Won't Fix
CreatedOct 2, 2017
ResolvedAug 18, 2021
UpdatedAug 18, 2021