Problems saving SWISH notes

I’ve hit a snag where when I try to update a notebook I’m writing in SWISH I get a “Permission denied. Please try a different name” error.

Previous ones I’ve done, eg https://swish.swi-prolog.org/p/Iteration2.swinb didn’t give that problem (once I learned that putting a short sentence in the “Changes” box was mandatory).

But one I’m currently working at at https://swish.swi-prolog.org/p/htdp.swinb refuses to save unless I keep changing the name to htdp1.swinb or whatever. I’ve no idea what I’m doing differently to the previous ones that worked.

Any ideas what causes this glitch?

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I ran into the same problem. I don’t know if it helps you, but my solution was to download the notebook, upload it on GitHub, and preload swish with the GitHub file; i.e. using a link:
http://swish.swi-prolog.org/?code=<link to your GitHub raw>
Kind regards, JCR

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This was due to a bug which has been fixed by @jan as explained at https://swi-prolog.discourse.group/t/swish-notebooks-problems-updating-not-sharing-when-logged-in/1257/3

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