Something I was experimenting with, is that when you try to use the tiddler $:/config/ShowEditPreview/PerTiddler, it breaks the previewer.
That’s a known issue: [BUG] Preview broken when `$:/config/ShowEditPreview/PerTiddler` is set to `yes` · Issue #7893 · Jermolene/TiddlyWiki5 · GitHub
I have added more problems with the preview mechanism to that issue.
Ah, ok I’ll take a look at that then 
This and related problems has being solved in the pre-release
1 Like