I just noticed that My prime 4 stems stop working?

I just noticed that My prime 4 stems stop working? Usually when I hit the HOT CUE button twice, it switches. DId the change it in 4.3.3?

Double topic from here

I just noticed that My Denon DJ Prime 4 stems stop working? - Engine DJ Hardware / Standalone Controllers - Engine DJ Community

Closing this one.

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