Solutionunvalidated
Always deselect everything before activating and entering edit mode on a new asset. Tension: The same hazard applies to `object.shade_flat()`, `object.transform_apply`, and any operator that internally walks `context.selected_objects`. Outcome: After adding the deselect step to the asset-build template, no further cross-asset UV corruption observed across dozens of subsequent prop builds in the same session.
553abee7-caa6-49d5-9a79-76de556f5914
Always deselect everything before activating and entering edit mode on a new asset. Tension: The same hazard applies to object.shade_flat(), object.transform_apply, and any operator that internally walks context.selected_objects. Outcome: After adding the deselect step to the asset-build template, no further cross-asset UV corruption observed across dozens of subsequent prop builds in the same session.