[tw5] Tidgraph: why doesn't it render correctly in open windows and in modals?

The tidgraph plugin: TW5 plugins! — for TW5 plugin development and installation

Image below (I’ve slightly tweaked the CSS. Please ignore that.)

When displaying a tiddler in an open window or in a modal, the normally A-1 graph does not show correctly (missing everything but the tiddler “bubbles”), and also indicates a problem (i.e. the “undefined” text).

Is it because the related tidgraph javascript tiddlers are unavailable to both open windows and modals ?

Screenshot 2022-08-21 12.30.08 PM.png

BTW, just as a sanity check in case I did something in my TiddlyWiki instance that tidgraph does not like…

Verified that problem exists in tidgraph TiddlyWiki proper: