Going to https://lemmy.ml/c/ps5 returns "404 community not found" but going to https://lemmy.ml/c/ps5@lemmy.ml works. This is definitely not intended behavior.
This is my community and this just started in the last hour or so.
Try it out and you tell me:
https://lemmy.ml/c/ps5@lemmy.ml
I've looked at other lemmy.ml communities and I don't see this happening.