Issue with importing preprint from Research Square to iPhone

Hello, I’m having issues with importing preprint from Research Square to my iPhone.

For example, this paper will not import:
https://www.researchsquare.com/article/rs-7035767/
I am using an iPhone 14. From the page, I do “share” then choose Paperpile, “add to library”. It then claims to have added the reference successfully, but then displays “searching pdf” for a long time before erroring.

It looks like the url could be wrong:

Thanks!
Will

Thank you for reporting, @wmacnair. Do you see an error code for the error?