Actually have no idea. Sounds close to impossible, but if we would look into it, I am sure we would find a reasonable explanation.
However. With our Virtual GPS v2 system, the same effect sure won't happen, and since it's not critical, we will not investigate it. It would be a bit of waste of time to fix something that hopefully won't exist in a few weeks anyway. This you couldn't know of course, so I am not complaining about your report.