Inconsistent Webhook Callbacks

[Ted Mead]

I have webhooks on each list of a board.  Most of the time they work but occasionally the callback just doesn't happen.  I move the card to another list (which triggers a callback), then after a couple of minutes, back to the list that missed the callback, and it then works.

An Internet search suggests the Trello API rate limit.  I understand about that for outgoing activity but does that apply to webhooks?

What might be happening?

[Rasmus Wulff Jensen]

Rate limits should not be in play here... I've not personally used webhooks for lists, but never had issues where the Webhooks did not arrive on Board Level.

Is there a specific reason you use list-webhooks? (if not why not try to get the event from the entire board and filter them in code (much simpler than having multiple callback urls)