Hello! I've modeled a geometry and for simulation this error occurs: "Solar Distribution = FullInteriorExterior will not work in Zone=15063 * ~~~ * because vertex 2 of back surface=15063_LINEAR BRIDGE is in front of receiving surface=15063_WALL_9_2_11 * ~~~ * (Dot Product indicator=153.4113)" the zone and the wall have no problem in construction and also I've not chosen the "check for non-convex zones" line. I don't know what else to do! Can anybody help me with this?