Difficulty booting from multiple device btrfs

I am trying to boot OpenSUSE from a multiple device filesystem. During boot, I get the message, “A start job is running for dev-mapper”, the boot hangs at this point. This is a multiple device btrfs on LVM. This is obviously a bug in the boot process with LVM having difficulty or with the btrfs multipart filesystem being recognized. This problem appeared after an additional device was added to the btrfs filesystem