Hello, I can't open Traktor pro 4. I've already done an update but it still doesn't work.
Have you checked the Traktor Crashes solutions ?
Also then did you give ALL NI apps full disk access ? : How to Enable Full Disk Access on macOS
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Has TP4 ever worked on your system, or did it work before you did an update? Also, are you using an Intel based Mac or an M-series?