Fix "File is damaged or unsupported" in After Effects
After Effects rejecting your iPhone photos? It is an HEIC container issue.
1
Container Issue
HEIC is a complex container. After Effects prefers simple image streams.
2
TIFF for Quality
If you need maximum quality for VFX, convert your HEIC to **TIFF (16-bit)**. This preserves the dynamic range without the compatibility headaches.