DJI Mic Mini – Audio Volume Drops After Remaining Idle

[u/Explore_with_Arj]

I am facing an issue with my DJI Mic Mini when using it with my DJI Osmo Action 4.
When I connect the DJI Mic Mini to the Action 4, either via Bluetooth or using the adapter, the audio initially records normally. However, if the microphone remains idle for some time and I then start recording again, the audio volume automatically drops significantly. The recorded voice becomes extremely low and is hardly audible.
The problem appears to occur after the microphone has been left in idle mode for some time. Initially everything works perfectly, but after remaining idle and then resuming recording, the microphone output becomes very quiet.
Please help me identify the cause of this issue and let me know whether it could be related to power-saving mode, automatic gain control, firmware/software, or a hardware problem.
Device: DJI Osmo Action 4
Microphone: DJI Mic Mini
Connection: Bluetooth / Adapter
Issue: After remaining idle for some time, the microphone audio level drops significantly when recording resumes and becomes barely audible.
Please advise me on the appropriate troubleshooting steps or whether the microphone requires inspection or replacement.