I'm so sorry for the delay.
Unfortunately I don't have good news for you at this point. I need to think it through a bit and see whether I can come up with some workaround.
Here are the big issues that you will face right off the bat:
Finally, would you mind share your .rptx file - the report file that you generated in ArcGIS Pro here. I can use that as a starting point.
Okay, I got something for you try. There are few hoops that we need to jump thru. That is because all the limitations that I mentioned above.
I will try my best to explain:
Here are two things that I have attached here:
What changes I made in .pagx & .rptx files:
What do you need to do:
Please let me if you run into any issues.
I have worked through several of your examples now and i can get them to work with just hosted features, but when i try to add related tables to my report the published tool fails to print. I have hosted features with 4 related tables. Link to RPTX file
Just curious if you think related tables would be supported?
Sorry for the delayed response. Unfortunately it is not supported out of the box, as you have already figured out. I'm working on to find any workarounds. I will update you once I figure something out (or not).
thanks for sharing the rptx file.