Hey all,
Recently, I've been collaborating with an off-site administrator to attempt to upload their state-wide data to our ArcGIS Enterprise Portal. They were able to create a hosted feature layer without issue, but when attempting to update this data, we were met with a blank screen. This occurs on-site and off-site. This does not occur when attempting to update FGDB-connected hosted feature layers, it allows updating without issue.
Screenshots (Taken on-site, same network as Portal):


GIF (Taken on-site, same network as Portal):

Any clue what could be happening here?

Thanks in advance!
Cody