I am using SD Scanner by Burrow Apps

Hi,
Can you tell us, what app you used as I also have Android Head Unit in my car?

My unit is on PX5 Custom ROM Android 9.0 Pie.

I have overcome this problem by installing one of the apps to Rescan SD media card. Now if I change or update the media using MMW and reinstall the SD card in the car, I force a rescan using this app and then MMA rescans all the album art successfully

I have Media Monkey Android installed on my car android unit (after market not Android Auto) and use this to play multimedia files stored on a USB drive. I load the music onto this USB drive using Media Monkey for Windows. I find the Album Art Grid selector particular useful for selecting music whilst driving. However, whenever I remove the USB stick and update in my home or alternatively just reboot the car android unit, scanning the album art seems to take an inordinate time and occasionally this never loads regardless of the time I am in the car. Is there some problem with the way I am doing this which could be optimised? Many thanks in advance for any advice