EDIT: This was a bug and it has been fixed in recent versions of Blender.
I've worked for many years using 3ds Max, now I'm learning blender, but I'm still new to it.
I'm trying to duplicate and mirror an object along the X Global axis. The object (a character's arm) is rotated. So I duplicated the object (with Shift + d) and I'm trying to mirror it with ctrl + M, and selecting global x axis. So it should be mirrored and rotated to the other side, and I would just have to move the position to the other shoulder's position and it should be right.
But when I use mirror, it doesn't actually mirror the object on global axis. Even though "global" is selected in the mirror panel, it mirrors on local, so the object is mirrored but is still rotaded to the same side as it was originally (so it mirrored on local axis, not actually global).
Is it a bug or am I missing something?