[mkgmap-dev] Track rendering on device

Hi all, I wonder if this is a problem that is specific for maps generated with mkgmap : When I chose a track as target for routing the track is displayed as a magenta line. When I follow this track on my bicycle the device sometimes fails to render the map, as a result large areas are flooded with magenta . The device is an Oregon 450t. The problem disappears when I move a few meters or chose a different zoom level. I'm never able to reproduce the problem at home, so I guess it is related to the movement, maybe combined with low batteries. I did not yet try if the latest changes regarding MapSplitter improved this. Did anybody else see this effect in original Garmin maps? Any idea what the reason is? Gerd