Help needed: Meta reusing images from older campaigns/account media library in new ads

Hi everyone. Has anyone else seen ads showing images from older campaigns in newly created campaigns instead of the images they are configured with?

We're seeing a recurring issue where images from older campaigns (still present in the ad account image library) are showing up in newer campaigns that were uploaded with completely different images. This has happened across multiple ad accounts belonging to different clients.

These campaigns are published through the Meta Marketing API v24. Ads Manager shows everything correctly, including previews, and reports no errors or warnings. The intended images appear everywhere in Ads Manager.

We've spent some time investigating placement-related causes, including testing placement targeting at the ad set level and adding exhaustive placement rules at the creative level to cover all selected placements, but we still receive reports of this happening.

What's not entirely clear is whether these incorrect images are actually being delivered to users or whether they're only being shown to ad account admins in certain views.

Has anyone encountered something similar recently?