PDF's only show first page after upgrade to S3

After upgrading, I find that all my imported PDF documents have disappeared, except for their first page.

Given the fact that I can’t roll back to S2, this is pretty disastrous, and I hope you come up with a fix soon.

Right click the PDF in the Binder and choose Open > in External Editor.

Or right click the PDF in the Editor and try a different view setting.

I have the same problem. I created a new Research document, and pasted a PDF into it. Only the first page of the PDF can be seen.

Doesn’t work. “Open in external editor” is greyed out.

I can’t see that option…

Either way, it is not behaving as it used to in the previous version of Scrivener, which is very frustrating.