you can initialize a patch and write over it. probably go to name and initialize that.I did that, I've spent the last 3 hours deleting presets. I can't believe you can't delete a patch on the synth itself, it's as though they designed everything else so well and just forgot this.
Yeah, I couldn't get the Particle to update before so they sent me some bootloader. The bootloader installed, but then it froze up on the update. Thankfully, it's not a pedal I use a lot, but it still sucks, as I have barely had it.
you could also go to an empty patch, hit save and scroll to the one you want to overwrite.