Despite adhering to the guidelines outlined in the Facebook Ads API documentation for custom asset placement customization

(https://developers.facebook.com/docs/marketing-api/dynamic-creative/placement-asset-customization),

I'm encountering notable delays during the ad creation process.

Additionally, I'm facing intermittent problems with video processing. These issues are impacting the efficiency and reliability of my advertising efforts.

These delays only occur when utilizing custom asset placement customization. Before implementing this feature, the ad creation process proceeded smoothly.

Could you confirm whether custom asset placement customization typically takes an extended period to complete?