Hi,
I am having issues displaying our hosted PDFs through a gallery using ArcGIS hub. Regardless of whether I have the data shared publicly or to just myself as the owner (or if I try Chrome vs Microsoft Edge), I am finding that sometimes the PDF will display and sometimes it will not. There doesn't seem to be any consistency as to whether it will display.
I didn't have an issue with the PDFs not displaying before today. I tried deleting the gallery from my site that the PDFs resided, then recreating the gallery. The first couple times I tried to open a PDF it worked, but then stopped working again altogether (on both browsers).
The issue seems very similar to the below article. Any suggestions for changes I can make or is this a bug?
ARCGIS Hub /Open Data Cannot Download Documents from Search Results after March 2019 update
I have web apps (under the Interactive Maps page shown below) configured in a gallery similarly to the gallery on the PDF page, and have had no issues opening the web maps/apps through my site, whether publicly shared vs. shared only to me, Chrome vs Edge, etc.
This is the error message that displays (it is not currently shared publicly):

Thanks,
Brett