Can't get auto enter to work on the web.

[FossilFM]

I'm working on a web solution where I create a new record in a table populating two fields that serves as keys to a master table. When i create the record using FileMaker Pro Client and enter the two field values, the other fields get their auto-enter and look up values from the master table.

The problem that I'm experiencing is that when I create the new record via web (CWP) and populate the two fields, the other fields that have auto-enter calculations or lookups don't get populated at all.

If I however reduce the relationship to just a single field, it works fine. Is there a bug with the web publishing area in that auto-enter or lookup fields that are dependent on two keys don't get triggered?

Thanks for any insight on this.