Invisible Waveforms with AIFF files

Hey, please watch the Video. So this problem happens with an internal ssd but also with different usb sticks. I synced the usb stick with rekordbox but later also tried engine. Any advice would be appreciated.

Exactly what firmware number is in the prime (don’t say latest) and what level of database is on each of the usb sticks eg: v1.? V2.?

Just so its clear, you loaded your tracks into Engine desktop and analysed them before exporting to the drive?

What version of Engine desktop and as Pasha said, what firmware are you running on the Prime 4? There have been DB changes at 2.0 and 3.0 so if you’re using a newer version of desktop than the device it could be causing issues.