Problem encountered with USB interface recording in Profiler Player OS 10.9.8.52337

When I connect an iPad to the player's USB-B interface for recording, the iPhone connected to the Player via Bluetooth cannot play accompaniment music at the same time. It will automatically stop playing accompaniment until I turn off the recording function of the iPad.

I remember there was no such issue with firmware version 10.9.2

Has anyone noticed the same situation?

I think it is an incomprehensible setting to not be able to hear the accompaniment in real-time through the headphone jack during recording of works

Quote from Ruefus

Maybe submit a support ticket?

Due to network policies, I am unable to obtain the verification code for supporting tickets here. I will do my best to try again later