How can I get the correct service_url from different Rails apps with the same DB?

I have 2 different Rails apps which have the same DB.

These apps can generate service_url from the active_storage_blobs table on the same DB.

Like this:

But, images(e.g. example.png) are only saved on first app.(second app has not images, only have DB) Maybe that’s why service_url generated from second app can not make us to access image through service_url access.

Why does above happen?

Before going deeper, why do you think something different would happen?