fixed bug in _custom_checks_world_trace
fixed bug in _custom_checks_world_trace

pet1330/strands_qsr_lib,cburbridge/strands_qsr_lib,strands-project/strands_qsr_lib,cdondrup/strands_qsr_lib,yianni/strands_qsr_lib,PDuckworth/strands_qsr_lib,yianni/rtd-dbg,Raziel90/strands_qsr_lib