"Dereferencing nullptr PPtr!" errors are logged when Source Image is selected in the Image Component

Reproduction steps:
1. Open the “nullptrIssue” project
2. Open the “Game Screen” Scene
3. Observe the Console

Expected result: No errors are thrown
Actual result: Three “Dereferencing nullptr PPtr!” errors are thrown

Reproducible with: 6000.1.0a7, 6000.1.12f1, 6000.2.0b10, 6000.3.0a2
Not reproducible with: 6000.0.54f1, 6000.1.0a6

Reproducible on: macOS Sequoia 15.5 (M1 Max), Windows 11
Not reproducible on: No other environments tested