Unwanted Sticky Z Lock Activation

MicroStation V8i SS4 - 08.11.09.829

Hi All,

I am currently working with a lot of 3D pipe (tube) cells for scaffolding which requires i constantly need to rotate them in plan view using the "3 points" rotate tool settings. Due to this, my ACS plane and ACS plane snap locks have to be constantly ON for better accuracy. Meanwhile, each time i try to rotate with these locks on, the first point snaps at the correct location but the second point snaps at an arbitrary point which is not desirable thereby rendering the third point invalid. So i cannot complete the rotation effectively 

Also, once i switch off the ACS plane snap, i don't experience this issue anymore but i need it ON to rotate accurately on a plane. This is an issue i have always experienced in MicroStataion for a while now and i just wonder what causes this problem. 

i would really appreciate your contribution to this 

Thank you

H