Share 'Problem with creating opening in planar surface when uv subdivisions increase.'

i have made a definition that creates a faceted wall and then creates circles in the faces that are within an acceptable range of angles (15-90 degrees from z-axis). it is a design for a wine cellar storage wall. the definition works fine at low uv subdivision but when i get up to u=5, v=5 subdivisions, the definition starts to act up. the circles do not subtract properly so i cannot get an openi…