Record created off of a form and/or Pipeline, but then no content in the fields - why?

I've read through this a couple times, and am not 100% sure I know what's expected and what it's actually doing 

Are there two issues here?

1) When just an individual workshop is selected, those fields don't populate

2) When the whole series is selected, just the first workshop session populates?

Here's a couple generic ideas..

• Are the blank fields lookup fields to a related table? If so, is the recordID being set correctly in pipelines?
• Pipelines looping can be tricky - and I fairly often realize that I'm working on the wrong branch or have forgotten to put a for each loop after a search

Good luck, fellow canuck!