So I downloaded a preset, and once it got done downloading I opened the file. Then I opened the Feral Heart folder, and proceeded to go to my_presets. Once I did that, I did all the steps your suppose to do to get them into FH.
I then opened FH, and put in my username, then went to Tools. I went to Preset Maker and found that preset, I put it on, and clicked 'Export' but after it said 'Failed To Export Preset' so I kept trying after a while, and rearranging files.
But it still wasn't working.