Just starting to get back into the hobby again. had a new Leviathan v2 installed about a year ago just before I left to go overseas. So it never unfortunately saw a game day or much use. Worked great tho. Now I’m getting back into things I got the gun checked and the companion app was working fine until yesterday afternoon. Now the gun won’t even show up. Ive reset it once or twice to see if that fixes the issue but I can’t figure this out. Any suggestions?
Good to see you back here mate, been a couple of years, and maybe that’s the issue that the Bluetooth link between the Leviathan and whatever phone you have has been outdated?
I would recommend asking @RokSolid for advice about this sort of stuff 
A portion of all profits from Jefftron products goes to after sales support, and I would recommend contacting Jefftron directly. They were always pretty helpful, there is a timezone difference though.
Did you update the app or the firmware? Or uninstall the app and reinstall. Also clear bluetooth pairing settings for the leviathan.
The cool thing about the leviathan is the app. The annoying thing about it is also the app!