Thx I'm gonna try
Make sure you don't have any town NPCs nearby. What does the buff of the ale say when you mouse over it? Check on the wiki for the spawn conditions and see if they are satisfied: Werebearguy/AssortedCrazyThingsSince the last update that introduced the Jellied Ale, the cute slimes have stopped spawning completely for me, even when the Jellied Ale is used. The only way I can get them to spawn is to change the config to spawn without the jellied ale.
In those cases, I was far away from any of my NPCs. I was near the center of the map, and my base is on the far left side of the map, above the ocean.
Main.dayTime && player.ZoneOverworldHeight && player.townNPCs < 3f && !Utils.EvilBiome(player);