this one took me a while to nail down. There is a bug with the resource macros when referencing an SVG.
Sample project file: ResourcesOnSubPages.rw8.zip - Droplr
This project is only HTML pages. There are 3 references to SVGs on each page.
Here is the exported HTML…
It seems that when the macro references an SVG, things start to become mangled.
I also noticed that the lower down the page hierarchy, the worse the bug becomes. Here is the same code on a page 2 menu levels deep.