Ok, I decided to try setting reloadHeaders to "true" (instead of leaving it at the default value of "false") and things worked again.
What could have happened on Rackspace's side to suddenly require this change? Is there any way I can avoid redeploying to implement this extra parameter call?
What could have happened on Rackspace's side to suddenly require this change? Is there any way I can avoid redeploying to implement this extra parameter call?