I wonder if it could have anything to do with the browser cache or cookies? I posted a message here a couple of days ago about not being able to save to tiddlyspot on a Chromebook, but I think the C'book is a red herring and my problem is maybe the same as you are seeing. I had two TW's on tiddlyspot, TW1 could save, and TW2 could not. I messed around with stuff, including clearing the browser cache and cookies, and now neither TW will save on the C'book. However, on my work laptop I can still save both of these to tiddlyspot, on Chrome browser.
On the Chromebook, I can download the tw to my local storage, edit, then upload back to tiddlyspot and the changes are saved. But when I access the tw from tiddlyspot, save still does not work. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/7fd1fd64-8b3b-4a22-a033-26b93f91e0fb%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.