[quote='874968022, Shay39, /thread/810932?answerId=874968022#874968022, /profile/Shay39'] I believe the behavior we're seeing is explained in the documentation … [/quote] That’s my interpretation as well, but I’m still not 100% certain that it matches the behaviour that ArthurValiev is reporting up thread. I have a reminder to spend some more time digging into this, but I haven’t yet had a chance. [quote='874968022, Shay39, /thread/810932?answerId=874968022#874968022, /profile/Shay39'] as it's currently the only practical method I'm aware of for preserving UDIDs. [/quote] It’s certainly a useful option, yes. Another option is to start with a template VM, then clone it twice [1] for each ‘runner’ Mac, start each one, and then stop it cleanly. Each one should pick up a new provisioning UDID during its startup sequence and you can then assign that provisioning UDID to your account. This is quite fiddly to manage, and it won’t work for organisations that have a large number of runners, but it’s an option worth ex