Any whitespace after the beginning [tt][![/tt] will lead to an empty output (I think in every snippet call, not just with Wayfinder).[! Wayfinder?startId=`0`
, my bad, I forgot to change the wayfinder call of the internal pages template. That’s why it was working for the home page and not for the rest of the pages. &excludeDocs=`13,11,14,15` did the trick.