[ovirt-users] When creating a virtual machine with a template, there are times when disk cannot be recognized

Hi: I use environment is ovirt4.2.0, first, I created a template, the template has already installed in the operating system, and then I use this template to create a virtual machine, sometimes can't find the disk happens, particular case is shown in figure: At this point, the virtual machine attaches disk again and cannot be recognized. However, the disk above is identifiable to other virtual machines, and the contents of disk still exist I would like to ask what causes this problem.