Comment # 3 on bug 1136641 from Arvin Schnell

Thanks for the report including logs.

I am able to reproduce the problem with Leap 15.1. With Leap 15.0
the problem does not appear. One problem is that the output of pvs
has changed. In Leap 15.0 pvs only reports the physical volumes in
the RAID. In Leap 15.1 it also reports the physical volumes on the
partitions used for the RAID. For this YaST could simple be updated.

But when activating LVM in the installed system I get errors from
'vgchange -a y' that some physical volumes have duplicates and thus
activation fails (on a named RAID, on an unnamed RAID it works):

# vgchange -ay
  WARNING: found device with duplicate /dev/sdc2
  WARNING: found device with duplicate /dev/md127
  WARNING: Disabling lvmetad cache which does not support duplicate PVs.
  WARNING: Scan found duplicate PVs.
  WARNING: Not using lvmetad because cache update failed.
  WARNING: Not using device /dev/sdc2 for PV
ECQlxl-NZZr-fLCA-Bc2P-L1yQ-szWg-cXKEQC.
  WARNING: Not using device /dev/md127 for PV
ECQlxl-NZZr-fLCA-Bc2P-L1yQ-szWg-cXKEQC.
  WARNING: PV ECQlxl-NZZr-fLCA-Bc2P-L1yQ-szWg-cXKEQC prefers device /dev/sdb2
because of previous preference.
  WARNING: PV ECQlxl-NZZr-fLCA-Bc2P-L1yQ-szWg-cXKEQC prefers device /dev/sdb2
because of previous preference.
  Cannot activate LVs in VG vg-b while PVs appear on duplicate devices.
  0 logical volume(s) in volume group "vg-b" now active
  1 logical volume(s) in volume group "vg-a" now active

This looks like a problem of the openSUSE base system.