The only time i have a purge fail is when the server has a lot of players on it. I still try and it now usually starts without any problem. Sometimes i need to try two or three times. Failures really seem to be related to either server load or how many others are also activating a purge. Ive run at least 2 dozen purges without issues so my set up is fine. As i said im sure there are bugs, but i do believe server load is also an issue.

Last night i only had one attempt fail, i started 6 purges.