I just had a guest (through Airbnb) request an early check-in, which I granted, went into OwnerRez and updated the check-in time, which auto-updated the door code activation time through RemoteLock (I had verified that the code did update).
Later that same day, but before the original check-in time, they submitted a stay extension via Airbnb. After accepting the extension request, they showed up to the house, still before the original check-in time, and the code did not work. Looking at the booking in OwnerRez I noticed the "early check-in" indicator with the early time I added was reset to the original check-in time, and therefore RemoteLock updated the activation time accordingly.
This seems like a pretty clear software bug to me, or is there something I'm missing?
Please write in to the Helpdesk with the ORB booking number and your description of the problem, so we can investigate.