First of all - apologies for this, we made a couple of mistakes that resulted in the shelving of your VM. It was unintentional, and we’re very sorry if its caused any inconvenience.
We have been trying to squeeze as much capacity for new VMs as possible from our system. Unfortunately in the case of your VM, adding one too many VMs resulted in the underlying server running out of memory and shutting down VMs to keep itself alive (with the (OOM killer)[https://www.memset.com/docs/additional-information/oom-killer/]). This meant that your VM was in a shut-down state.
Because shut-down VMs still take up an allocation of our overall capacity, we periodically go through and shelve currently shut-down VMs to reclaim (presumably) dead capacity that we can use for new VMs. Your VM was in the wrong place (shut-down) at the wrong time (we were shelving shut-down VMs), and unfortunately got shelved.
The final annoyance is that your VM was started (via Horizon, not Bryn), in a way that means it unshelves very slowly. We’ve corrected that for your VM, so it should take less than 30s or so to unshelve in the future, compared to the hour+ it took before.
Again, we’re very sorry about this series of events. We’re now being more careful about reclaiming capacity and prevent users from launching VMs from Horizon.
If you’re having any problems with your unshelved instance, please let us know.