G68 PROBLEM

I am running a VTM-120Yb. My cad cam system writes my program using more than one G68 in a row. Example:
G0 G90 B90.0
M74
M64
G97 S406 M13
G68 X5.19 Y0. Z-2.0 I0 J1 K0 R90.0
G43 H26 D26 M8
M69
G0 C315.0
M67
G0 X0. Y0. Z3.0
Z0.1
G83 Z-0.24 R0. F2.7 Q0.05
G80
G0 Z3.0
G69
M69

( DRILL SIDE8 )
G68 X5.19 Y0. Z-4.25 I0 J1 K0 R90.0
G43 H26 D26 M8
M69
G0 C400.0
M68
G0 X0. Y0. Z3.0
Z0.1
G83 Z-0.28 R0. F2.7 Q0.05
G80
G0 Z3.0
G69
M69

The machine will crash after the second G68 is called. It's like the machine does not clear the last G68 when G69 is called. Okuma told me that the machine has to be homed to clear this. Is this true? I never had to do that on other machines.

Thanks