iframe_content_id

HI,
I am using advanced iframe very successfully. However I have a small problem..

I am loading php content into an advanced iframe which is held inside a pop up div.

I have several elements in the page that use this structure. Some pop up iframes are not loading iframe_content_id and iframe_content_styles informtaion.

They are all using the same code Onl;y the id name of the iframe is different.
Any ideas?

https://www.ads-software.com/plugins/advanced-iframe/