Add that to the objects fpe file that is giving you the issue.
forcesimpleobstacle = 3 looks for polygon collision of objects to find the opening.
There are other settings to the command and options.
// forcesimpleobstacle
// -1 ; absolutely no obstacle
// 0 ; default
// 1 ; Box ( )
// 2 ; contour
// 3 ; full poly scan
t.tryfield_s="forcesimpleobstacle";
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit, Screen resolution 1680 x 1050.
