Presets belong to a library (presets.json, <library>/Profiles): dropped
while the launch list or the failed-library window is up, they went into
the session the library opened then replaced. They are refused with a
toast now; the photos of the same drop still wait for the library. Docs:
What's New, control protocol, the #1290 tracker row.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>