RAID1 disk became uninitialized on macOS after using with iPadOS

Dear Apple,

I am currently experiencing a major problem. I have 5TB data in my RAID1 external drive (2 disks setup with APFS).

I plugged this RAID1 into my iPad Pro using USB-C. The drive was successfully detected by iPadOS (14) and it works.

However, after that, my macOS (Catalina) can no longer detect my drive. Both disks became uninitialized and could not be mounted.

The data isn't lost, but only iOS can read my drive.

I assume that iOS maybe changed some metadata or flags of my drive. Would it be possible to manipulate and restore the original metadata and make it recognizable again by macOS? Without data loss of course.

Thanks in advance for any help you're able to provide.

Best,
Neil

ps:
I currently using a USB-C dock to transfer all my data to another no-raid hard drive, which works on both macOS and iPadOS.

This method is not optimal, because first it may take 2-3 days for 5TB of data, and finally iPadOS's Files App is not that reliable, sometimes it crashes and iPad reboots by itself, which may lead to data corruption.
RAID1 disk became uninitialized on macOS after using with iPadOS
 
 
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