Design load failure when opening legacy Canva designs in current editor

Goal: Determine whether a legacy Canva design created with an older editor generation will render successfully in the current editor after a platform update, given the lack of a published compatibility matrix.

Constraints: The Design Loader component may surface a generic load failure without a version‑specific message, and the failure behavior can change with Canva’s continuous deployment, making it unclear whether a design will load, require conversion, or remain inaccessible.

Questions: What editor version thresholds cause the Design Loader to reject legacy designs? Is there a reliable way for developers to detect impending incompatibility before a design fails to load?