UnrealEditor hangs at 96% when launched on Linux

Unshelving the CL's mentioned in the repro steps causes Unreal Editor to stall when loading up on Linux.

Issue still occurs when the unshelved CL files are reverted.

1. Sync to latest in //UE5/Main in Perforce on Linux.
2. Unshelf 14867245 by Martin.Ridgers and 15088736 by Brandon.Schaefer.
3. Compile the engine.
4. Open the engine.

Expected Result: Engine opens.

Actual Result: Engine stalls at 96%.