[bug] Thumbnail not displaying for some image files

[akadoura-zyres]

I've noticed an issue where the thumbnail is not being displayed for some image files and couldn't figure out what the reason. Instead of showing the generated thumbnail, the default thumbnail image of src="/assets/icons/placeholder.png" is being used.

Observation: These images contain some custom metadata (shown below), and the thumbnail shows again after the metadata removal.

Could you please investigate why this is happening?