UPDATE (if you still have original firmware this won’t apply to you): So I left my controller stored for about a month with new firmware already working. Last week I updated VDJ to the 2020 version then tried it with the deck this past Saturday & low & behold this #%** started again!! Tried my little reset thingy a couple times to the point where both platters stopped. I switched outlets thinking it was grounding, still screwed… then I tried Hail Mary, I downgraded the firmware (yea, the updated let’s you do that) to version 1.1, guess what? Stopped freezing but it wouldn’t scratch unless I was touching the decks faceplate (grounding it) at this point I probably should have swapped outlets back but threw another HM, downgraded all the way to the original firmware (version 1.0) then switched the outlets & the damn thing is now working perfectly. Same Saturday night I did a 4 hr gig & another 1 the next day, not even a hiccup. Don’t know if there is anything missing from it by downgrading but I don’t miss anything. If you want to try this have to go to denon and download from the archived firmware:
I download the old firmware, (I went all the way back to the original version 1.0, if wanna give 1.1 a try go for it) then in the firmware updater options check “allow downgrade” then just go through the steps as you would for the upgrade but substituting the downloaded firmware bin file instead. Hope this works for you.