One column in data exported is not shown, but it's shown in the submitted form

Hello,

I need help on the following.
Submitted form showing column stockpoint attachment have some data, but
when I export the same column doesn’t show any data.

Submitted form
https://www.commcarehq.org/a/projectbloom/reports/form_data/a5d8fca6-f9f7-4625-94e2-fccdae5e790d/

Exported file in excel attached the row highlighted in yellow color.
Stockpoint attachment is blank.

Thanks & Rgds,
Lina

Pre-Screening- Uplifter2016-12-28.xlsx (101 KB)