Okay, I've got that now <https://hegart-dmishiv.github.io/my-TW5-dev-instance/#%24%3A%2F_Macros%2Fbreadcrumbs> in my dev TW5 instance <https://hegart-dmishiv.github.io/my-TW5-dev-instance>, thanks. I've also copied a very simplified tag structure from my live (offline) TiddlyWiki to dev <https://hegart-dmishiv.github.io/my-TW5-dev-instance>. The structure there is currently only a single-tag-per-tiddler straight line, making your macro work perfectly as intended. Adding extra tags to a tiddler anywhere in the structure causes problems still.
By the way, thanks for all the help. It has prompted me to re-learn how to use Prose.io and Travis CI to update my dev instance on GitHub, which I hadn't done for a while. The grey matter is getting a good work out tonight. :-) -- 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/533f4185-a594-4cae-ac62-dbe231bcaa38%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.