#orgmode quesiton: when publishing (C-e) to HTML, orgmode can't render internal links, like [[#link here]] any idea why?

yes so it's the specific link. When publishing from #orgmode I get "unable to resolve link: 'emacs'

the link is this: [[#emacs][Emacs]]

the Custom ID is 'emacs' right there in the same document.

why?

@jrss
I can't reproduce -- your heading looks something like this, right?:

```
* heading text
:PROPERTIES:
:CUSTOM_ID: emacs
:END:
```