Cant get Dynamic Data Attachment


I have follow the instruction on the Dynamic Data Attachment. I have be able to link the form 2 to form 1, in Enteko, but I cant get the Kobo Collect app to update.
I have already enable Blank form mode to → exact match server.

Could you please help me figure it out why?
I have attached the 2 forms
Round_2.xlsx (12.9 KB)
Round_1.xlsx (15.8 KB)

@Okard, we would request you to first be familiar with the syntax used in the support article (as this is a bit complex when compared to other expressions) :

Once you are familiar with the syntax you could then start fitting the requirements in your XLSForm.