Dynamic Media Preview broken in Brand Portal
The initial image preview at the
assetdetails page in Brand Portal is not visible. This issue occurs for assets which have been synced to DMS7 on Adobe Experience Manager (AEM) and which were published to Brand Portal afterwards.
You would need to put in the Dynamic Media configuration in BrandPortal, the very same credentials/settings as the DynamicMedia cloud config in AEMaaCS. This will then request dynamicmedia renditions from the secure test server of DynamicMedia. In order to allow that, the egress IP address of the BrandPortal system of your region will need to be added to the IP filter in DynamicMedia Classic app - Setup - Application Setup - Publish Setup - Image Server - Publish Context: Test Image Serving - Client Address Filter. The egress IP is documented here: