Bob supplies the core plugin, so if you are using BobEXE than it will always be that version regardless of if you try and update a wiki or not. So that part at least is expected. And the message about having pending saves has been around for a while, I don't think that this is a consequence of what you are doing.
For the rest it is somehow getting a path or a file name that doesn't exist and after that any behaviour is unexpected. The only thing that I can think of is that there is a tiddler with a name that somehow can't be translated to a valid file name, but nothing from the error message you showed would do that. Do you have any tiddlers that have titles longer than 255 characters? Or possibly with non-ascii or non-utf8 characters? -- 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 [email protected]. To post to this group, send email to [email protected]. 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/407285b0-28b6-43be-be91-60bcbb9e49f2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

