February 25th Survey123 update broke external choice list in the survey

Question

Hi,

This is what I see in the update for Survey 123 field app:

* External select choice filters can now use name values as numbers.

The reality:

I had external choice list for the survey (Nan string value and numbers):

Worked fine like this, and still works in Connect (I have not updated it):

This is what is happening in the field app (instead of Nan I have selection mark):

Thanks,

Yulia

YuliaMamonova · Accepted Answer

Update: Changed "Nan" to "Not Found" and it now displays in the dropdown. Has "Nan" become a reserved word or something?

YuliaMamonova · Accepted Answer

Yes, but it worked fine previously so it confused me. The data is coming from a third party and is pulled into csv, so I asked them to change it from Nan to smth else, and now it's all good. Thank you.

JamesTedrick · Accepted Answer

Hi Yulia,

As described in the 3.12 What's New blog post, the list processing has changed to be more robust and performant.  If you wanted a value nan in a sequence of numbers, you would need to ensure that is in double quotes in the CSV file