One thing I have noticed that if you press the sync button to many times as in on/off/on quickly it throws the grid out of alignment, I have to use it sometimes because I’ve got some wonky old records that I recorded which I didn’t realise until I decided to grid them all & in a way tells me I was actually better at beat matching on my old turntables than I gave myself credit for as I just dealt with on the fly.
I’m actually using Apple Music so it would be good if someone from Denon could actually acknowledge the issue.
I don’t use any of the streaming services, I’ve still got the 2 months free subscription that I haven’t claimed yet from a year ago & I don’t even use my amazon sub either although I get plenty of deliveries from em & watch plenty of crap.
Who’s Denon?
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Put into text so people can read it, Serato Studio currently has a smarter beat analysis than Serato DJ software, so any (non stream) tracks with live drums can be analysed in Serato Studio, then when loaded in Serato DJ the beat grid will accurately follow the tempo changes.
The one caveat Mojaxx mentions is that “the one” has to be in an obvious place, as there’s no way to shift it.
The tech is clearly there, just not in Serato DJ itself, but the speculation is that it might not be too long before Serato users get their fluids. 
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This is where the dynamic grid analysis in recordbox falls over for me as well, without the ability to pick the first beat any non beat intros get messed up until it picks up the first beat, after that it’s ok.
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it is a new issue, honestly I dont know since when, i can guess is like from 4.3, I have the same issue. when i turn on my prime 4, no issue, but after few hours playin the issue comes, I want to figure out exactly when the bug is appearing. but at the same guy before with the issue is only on deck 1. to reset that bug/issue, what i do i that I do a jump beat on deck 1 and it resolves in that instance. if i move the tempo, i have the same issue where the speed of deck 1 is modified, not the waveform view.
Hey, to anyone on this thread, I recommend getting in touch with Engine support Support | Engine DJ as they may be able to get you access to a special build to test this fix.
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Both bpms are exatcly same and it is correct
I wrote to support and they say that the problem is solved by installing 4.3.2, they do not mention any build to test
below is their response
Hi Gianluca,
Thank you for reaching out to us.
My name is James, I’m a level 2 tech support specialist, and I appreciate the opportunity to assist you.
I’m sorry to hear that you’ve been experiencing this with Engine OS 4.3.1 installed on the Prime 4+.
Please, can you try updating to 4.3.2? You can either install it via WiFi, or using the installers on the downloads page here: Desktop and OS Downloads + Manuals | Engine DJ
Have you attempted a Factory Reset?
Settings > About/Update > Factory Reset (This will not affect your library.)
If the behavior persists, please can you provide a video demonstrating it? This will help me to better assist you.
Please let me know if you have any other questions as well. I’m always happy to help.
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