I am having trouble with random files showing up in my presets. Every time I close my lightroom and go back in there are probably close to a hundred random "presets". They are all a random combination of letters in numbers. I have noticed they are in alphabetical order. If I don't go and delete them each time I open lightroom it keeps adding them. I had to delete over 3,000 of these "preset" files. I cannot figure out where they are coming from. I have looked everywhere. I have even uninstalled and reinstalled lightroom and creative cloud. I am using a Mac (I don't know if that makes a difference).
What is your path to your presets folder?
Any chance you can attach a screen shot of Finder showing your presets directory?