This is a confirmed issue with the tool Join two datasets. The tracking ticket is here: https://github.com/galaxyproject/usegalaxy-playbook/issues/46
Workaround: Reset the metadata for the join output to have the datatype
How-to (same solution in both FAQs): https://galaxyproject.org/support/#getting-inputs-right-
- The tool I'm using does not recognize any input datasets. Why?
- How do I find, adjust, and/or correct metadata?
Thanks for reporting the problem! We expect to have this resolved quickly.
Jen, Galaxy team