Where are the saved custom popcorn effects presets

So I’m using the popcorn FX sequencer and I’m trying to find the location of the saved presets that I’ve created. It says that they’re saved because if I try and create the preset again, it says that that name is already been used. But the name does not populate in the preset list for me to choose and then load and I’m trying to figure out what else I need to do to get that working.