sub space c h i c k e n space d i n n e r space by uniE0B5;
What’s wrong with this? Doesn’t do anything in Indesign with the dlig feature on. If I insert the uniE0B5 from Indesigns glyph palette, it actually inserts the text “chicken dinner” instead. Does it matter if the target glyph is in PUA?
The space as part of OpenType features is tricky. Indesign is using a different character instead of the space and that something breaks code like this.