Does anyone know why some presets get lumped into sub groups at the bottom of the preset panel? And if so, is there a way to stop that from happening? Here is an example of what I'm talking about. Any help would be appreciated.
It has to do with how the creator exported them. To fix this, you would need to manually group, export, then reimport so they're not defined under "User Presets" or you can simply use this tool which is built specifically to fix this single problem (plus removing duplicates): https://johnrellis.com/lightroom/fixpresets.htm
open the preset in a notepad or any text editor. and rename the cluster to your preferred subgroup name.