fails to load .otf.ttc file

[xry111]

For example, on loading NotoSansCJK-VF.otf.ttc:

! error:  (file /usr/share/fonts/NotoSansCJK-VF.otf.ttc) (ttf): loca table not 
found

It seems luaotfload treats all .ttc files as TTF collections.

[u-fischer]

Try with Renderer=HarfBuzz

[xry111]

Try with Renderer=HarfBuzz

Got warnings like:

warning  (file /usr/share/fonts/NotoSansCJK-VF.otf.ttc) (cff2): unsupported blend operator

and the glyphs don't show up in the PDF.

[xry111]

Try with Renderer=HarfBuzz

Got warnings like:

warning  (file /usr/share/fonts/NotoSansCJK-VF.otf.ttc) (cff2): unsupported blend operator

and the glyphs don't show up in the PDF.

It's because HB renderer does not support VF now (#197).

[xry111]

Renderer=HarfBuzz works fine with texlive-2022. Closing.