Attachments() function "Not available"

Discussion created by francis.hourigan on Mar 22, 2019
Latest reply on Apr 15, 2020 by saucydev

I have a point feature layer with photos as attachments. This layer was created by uploading the zip file to ArcGIS online per the newest update. The attachments are links to my OneDrive folder. However, in both the symbology and the pop-up configuration windows the Attachments() function is "Not available"...  Why?