Topic category: Troubleshooting, bugs, and solutions
So far from what I have tested anyway is when I make a biome using just minecraft's sand or other blocks(tested multiple), and try to do custom trees, only these things work.
Custom Trees: Yes unless it's cactus
Trees per chunk: Yes unless it's cactus
Vanilla Flowers: Yes
Mushroms big/small: Haven't tested
Sand Patches: No, they aren't working
Gravel Patches: No, they aren't working
Reeds per chunk: Nope
Cacti per chunk: Nope
So if anyone has a good workaround in meantime, I'd appreciate it.
Mcreator Version: 1.16.5(2021.2)