Light level is incorrectly calculated when passing through transparent blocks

I recently converted a world which i ported block for block from the PC version, its a rather small farm. Within the farm 1 block and 1 block only has a light level of 7, its surrounded by a wall of glass, and it functions and works correctly within 4J's engine and PC's java version. However under the bedrock engine the light level is incorrectly being calculated when passing through the glass. When I replace the glass with solid blocks it functions as it should. This leads me to believe that when light is passing through transparent blocks its not being calculated as it should be, ie degrading.