During the installation of OpenSUSE Beta Build 0164 from Net install CD I
choose to remove the partitions of a SSD with Windows, I choose the guide mode
to get everything removed and let OpenSUSE guide create the content on the SSD.

I choose encrypted LVM, and the guide suggested BTRFS and XFS inside it.

The guide created 2 partions with 156MB, the first one for /boot with vfat, the
second one without mount point and without file system.
Inside the LVM it created the normal stuff (/home and /)

Later during the installation process when the second empty partition of 156MB
was supposed to get created it got rejected with an error message.

I don't know why this second 156MB partition was scheduled to be created, nor
why it later got rejected during the actual creation process. The guide never
specified what it was supposed to be used for.