Anybody have problems with G71 on a Yasnac LX3 Control? Here's a sample program....

O0004;
N001 G40 G20;
N002 G50 S3500;
N003 G96 S500 M3;
N004 G41 T0505;
N005 G0 X1.15 Z-9.5 M8;
N006 G71 P7 Q14 U.01 W.01 D.015 F.005 S500;
N007 G0 X.125 S750;
N008 G1 W-.2 F.004;
N009 G12 X1.0625 K-.09375;
N010 G1 W-.85;
N011 G2 X.7625 W-.15 I0.0 K-.15;
N012 X1.0265 W-.15 I.15 K0.0;
N013 G1 W-.975;
N014 X1.15;
N015 G70 P7 Q14;
N016 G0 G40 X8.0 Z-4.0 M9;
N017 M30;

It runs ok till somewhere's near 'N009' during the finish cut (G70)..... then throws "Alarm 048" which is "PROG ERROR (G41-44) INTERSECTION POINT NOT OBTAINED BY INTERSECTION COMPUTATION".... What am I overlooking???

Then on another related problem....
Every time I try to cut a concave profile (diameter steps down then back out) on a part using G71 it takes the concave in one pass....