The bug appears when you rotate plan XY by 90 degrees.
1) rotate plan XY by 90
2) launching programs
3) stop
6) Start from selected line 8 lines(bug here)
G00 X20 Y20 Z30
G0 Z2
G1 Z-20
G00 Z30
G00 X-20 Y-20 Z30
G0 Z2
G1 Z-20 (Start from selected line 8 lines(bug here))
G00 Z30