Yast bootloader looks for an old drive by-id when loading bootloader settings

I swap between 2 drives cloning as a backup. I change the drive id in fstab and the clones function. I needed to go into the yast bootloader and it failed to load the bootloader settings claiming
“Unknown udev /dev/disk/by-id/scsi-SATA_…-part3 Caller: /usr/share/YaST2/lib/bootloader/device_mapping.rb:42 in to_kernal_device”. The id belongs to my other drive and I cannot find the file that contains that reference.

Anyone know where it gets this device from so I can change it to the drive that’s currently fitted?

thanks Robert

I found it in /etc/default/grub_installdevice