AppleRAID JBOD stuck. Can't expand partition and also remove device.

Hi.

First, I created AppleRAID JBOD using two 8TB hdd. (choose APFS filesystem and generated single 16TB container.)

Then, I tried to added another hdd drives. But, diskutility apps says 'Operation is failed because can't expand volume'. However, new drive is already joined JBOD members.

So, I can't expand container volume and also can't remove new JBOD member drive.

Is there solution?

• This is my appleRAID info. And the result when I tried to remove devices.

AppleRAID sets (1 found)

===============================================================================

Name:                 Media HDs

Unique ID:            B4CDA256-EA0C-49B7-BDB6-C36D0ACFEC09

Type:                 Concat

Status:               Online

Size:                 24.0 TB (24002991390720 Bytes)

Rebuild:              manual

Device Node:          disk12

---

DevNode   UUID                                  Status     Size

---

0  disk7s2   61FC5317-59D6-4317-92AB-70B934DCF0E4  Online     8001219231744

1  disk8s2   038BDC0B-1B0A-4D95-8278-68A6BD12990E  Online     8001219231744

2  disk9s2   62E55A81-A025-4097-AB85-5B4F608E4F2C  Online     3000248991744

3  disk10s2  CE0A7BA3-BEB8-4AA4-8468-6A5CDA9BACEC  Online     2000054943744

4  disk11s2  A3566855-E11C-4843-823D-777EECDACD52  Online     3000248991744

===============================================================================


mike@moon ~ % diskutil appleRAID remove disk11s2 disk12

Started RAID operation on disk12

Can't remove the last partition because the file system isn't resizable

Error: -69886: Invalid request