some Dither issue from mpc live2 anyone?

Hi.

I'm using live 2 for my liveset up and I just found that It makes a dither when I change view (like when I change window such as Menu, Main, Mix, Mute, Next Seq etc) while it's playing

CPU is now 24%, Memory is 20% and the drive is pretty much free.

and Actually I found that it happens on individual outputs not the phone out.

I didn't experince any dither when I plugged into phone out.

would this might be some DAC issue?

https://www.dropbox.com/s/09if01w69zq2v ... 6.MOV?dl=0

here's the link for the video I shoot.

I just been keep changing just to show but it dithers randomly when I change the windows.

also I tried latest firmware and also tried factory reset but both were same

what I found is it's okay for first few hours (like 1~2) but it happens when I keep the gear on for a long time.

can I get a help with this please?

Thanks

The CPU might be throttling if it's building up heat from being left on for a long time...