AppleRAID JBOD APFS resize error when trying to add or remove a disk

When I attempt to remove a disk from the AppleRAID JBOD APFS I get the error:

Can’t remove the last partition because the file system isn’t resizable
Invalid request. : (-69886)

Operation failed…

Also there is a similar error when trying to add a disk:

Unmounting disk
Repartitioning disk4 so it can be in a RAID set
Unmounting disk
Creating the partition map
Adding disk4s2 to the RAID Set
Can’t resize the file system on the RAID set 95FA9384-31E9-4916-8FFD-13B3AA0F551F
Invalid request. : (-69886)

Operation failed…

No size options were set for the volume in the container. And I experimented with setting the reserve and quota but it had no effect on the problem.

If anyone knows a workaround please contact me! Thanks