Steps to reproduce:
1. Open the attached “DestroyPendingTrackableIssue.zip” project
2. Open the “SampleScene” scene
3. Enter Play Mode
4. Observe the Game View and Console windows
Actual result: Cube was destroyed
Expected result: Cube is visible
Reproducible with: 6.3.0-pre.2 (6000.3.11f1), 6.5.0-pre.2 (6000.3.11f1, 6000.6.0a1)
Not reproducible with: 6.3.0-pre.1 (6000.3.11f1)
Reproducible on: macOS Sequoia 15.7.4 (M1 Max)
Not reproducible on: No other environments tested
Workaround: adding a "if (trackable.destroyOnRemoval)" check on line 280 or ARTrackableManager.cs in the "DestroyPendingTrackable" method.