Noticed that a gap is produced in the bridge layer. This example starts printing from the bottom-right bridge infill, and it fills everything in except for that vertical gap near the left-most green line. Almost seems like a rounding error...
This is at .40 nozzle size and .48 extrusion multiplier. If I go below (.47 and under) or above (.49 and over), the bridge infill changes to 45deg angle and fills in correctly. At .48, it does a linear bridge fill with a gap. Obviously, if I change the size of that section, the above does not hold true. Seems like the specific dimension of this bridge filling area causes this anomaly.