I am using ArcGIS Pro version 2.5. I have configured pop-ups as you can see in the two images below.


I have read that you can publish the layers and these configured pop-ups will follow to Portal which my version is 10.7.1.
https://community.esri.com/thread/246120-pop-up-created-in-pro-does-not-work-when-published-to-portal
https://community.esri.com/thread/212571-how-do-you-display-popups-configured-in-pro-with-expressions-to-display-correctly-in-a-webmap
My workflow is like the first post's for publishing. Share tab -- Publish web layer -- I am referencing registered data -- Publishing both Feature and Map Image. I do not have version issues like the second post with my Portal being above 10.6.
After the publish goes though, when I open the web map and load the data in, none of the pop-up configuration transfers. The custom text, selection of fields, and expressions do not publish. I have tried this with the image layer, the feature layer, registered data, and hosted data.
Is there something that I am missing?
Thanks for your thoughts!