@mnormand as commented in https://bugzilla.opensuse.org/show_bug.cgi?id=1174166#c8 this is also affecting us, e.g. our openSUSE Leap 15.2 PowerPC openQA worker machines. The patch in grub seems to be simple enough so that we could apply that as maintenance update for SLE and/or Leap as well. Trying my luck with https://build.opensuse.org/request/show/882581