Problem reaching Lemmy.world communities

Hi, for some reason I can't reach Lemmy world communities through lemmy.ml even though the instances seem to be connected.

Lemmy.ml/c/vegan@lemmy.world gives me a 404 error while Lemmy.ml/c/lemmyworld@lemmy.world works fine.

Any idea why this might be?

Edit: Solved ✅ by @PorkrollPosadist:

https://lemmy.ml/comment/524912