4th axis G2/G3 preview

Hi.
Very simple program:

G0 X-7 Y7 Z0 A0
F1000
G2 X7 R15 A3600
M2

I can't test it on real machine now, but the DRO show correct, the tool goes on G2 path and the A axis rotates as expected.
The preview is horrible.
Tool rotates on the tool path, not rotates on the axis.
(In Gmoccapy not rotates at all, but the DRO shows the same and seems correct)

Regards.

No double posting, it makes it impossible to follow what has already been answered.
The other topic deleted.
Thank you.

Here it is User Interfaces > AXIS.
Second topic was in User Interfaces > Gmoccapy
Do you think the Axis is the same as Gmoccapy?
(Topic is about preview, bad in both UI, but not from the same reasons, and I suspect the solutions must be different)

That preview is as good as it is going to get i'm afraid. ABC tool rotations are visualized by rotating the tool cone around the toolpath.

[edit]
just tested this in gmoccapy (current master ie pre2.10 version) and for me it shows the rotation just like the axis gui.