Hello! This is my first digital guitar tool, and I wasn't sure if I would like it, but I really liked the idea. I bought it and got it home, tried the presets. Most had waaaay too much distortion, but after some quick swipes on the ipad air 2, I was able to tame a lot of the presets and make them les paul friendly. As I began to make my own tones that I really liked and saved several, I suddenly got error 21 on the firehawk. The patch still saves to the unit, but all the lights go out. So after stepping on a switch (A, B, C, or D) all the lights come back on and the unit is reminding me to save the patch - I can tell, because of the dot in the menu. Once I close out of the app start it fresh, I reconnect with the firehawk and everything is fine again. It seems to happen every third patch creation... haven't tried the cloud tones yet. I am using firmware 1.20 i believe. Any suggestions? Thanks!