App Studio DataView has data but when I pass it to Function the DataSet has no tables arghhh

So I used the app wizard to create a new app from a BAQ. That’s fine and there is data in the DataView but when I pass it to my Function, it says there are no tables in the input DataSet. Please help! TIA Screenshots below.

My DataView:

Plenty of data:

My Function parameter:

Beginning of my Function (it never even gets in the if statement):

Return message from my Function:

My Method Parameter:

I’m doing this successfully elsewhere so I’m at a total loss as to why this is happening. Any help is greatly appreciated!

EDIT: Thanks to @hmwillett for this tip, I was able to get it working! Application Studio - Pass Tableset to Function - #12 by hmwillett