Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression.

No memory leak occurs when watching a new blank Actor BP, which implies the root cause is from the Pawn BP.

Steps to Reproduce
  1. Create and add a Pawn BP to a level
  2. Open Level BP
  3. Wire a BeginPlay node to a GetActorByClass node
  4. Set Actor Class to your Pawn
  5. Right-click the return value and select "Watch this Value"
  6. Set the debug object to your level
  7. PIE
  8. Open Task Manager

Actual Result: You can see a gradual memory leak coming from the editor. On more complicated pawns (including new blank Character BPs) the leak is even faster.

Expected Result: No Memory Leak

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ComponentUE - Gameplay - Blueprint Editor
Affects Versions5.1
Target Fix5.2
CreatedDec 1, 2022
UpdatedDec 6, 2022