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I'll do that.

Thanks!

I tried a PDF (https://www.researchgate.net/publication/279770368_Electrodermal_presentiments_of_future_emotions#read, which I downloaded and dropped on the appropriate text bar for PDF's), and it appeared to be complete with images in the preview. When I typed in my username, keychain popped up, I hit confirm, and then got the error 'missing post authority'. Is there something else I need to do?

Also, I tried an ordinary URL: https://pubmed.ncbi.nlm.nih.gov/23109927/

I entered it into the search bar, clicked the (unlabeled) ArcHive button, and was asked if I wanted to publish it in two parts, which I affirmed I did, and then a popup recommending the ArcHive bookmarklet came up, and AFAICT the page was not archived. I tried the bookmarklet after replacing the old on, and that just returned me to the page where I enter the URL into the search bar. I tried several times with both pages, and appear to not have succeeded.

If there's anything I need to do differently, or if there's more information you require, please let me know and I will do anything I can to help.

Edit: added PDF URL in case it matters.