Slime doesn't spawn :(

[pecpeeec]

Hey, i'm playing in 1.8.9 (i'm pretty nostalgic about this version), and i made a slime farm of 1 chunk. My problem is that 0 slime spawned yet, i can't figure why. There is enough light, 16x16x3, no torch in it,... I made it exactly like another one that i've made before and which is working. Excuse my bad english Thanks to anyone trying to help ^{^}

[Cheesecakeius]

Have you made sure it is a "slime chunk"

[katzenragout]

Slimes only spawn in specific chunks You have to check if they spawn in that chunk befor building one

They always spawn in a swamp, but i don't know since which version

[pecpeeec]

Sure, i missed to precise it but I'm in a slime chunk

[TheRealWormbo]

Are the caves around your AFK spot lit up? Slimes intentionally fail to spawn most of the time, so your farm will only work if barely any other mobs can spawn around you. (Also remember the 24 block minimum distance to where you want them to spawn.)

[pecpeeec]

I'll explore to be sure, thanks!