can't get the dragon eggs to spawn in chests

[noejh]

Hey! I can't get dragon Mount eggs to spawn in chests on my minecraft server, and when I went to config files, it only has a 3 line code to make vanilla dragon egg hatchable and nothing else. I have latest version of the mod for 1.19.4 java. Wonder if there's any chance of giving a part of the code for the config file so we can decide how often to get them or even control if we can get them at all, because it's not working and i don't know why. i downloaded it succesfully and I can see everything in creative inventory but i can't get anything on survival.