I think, the problem is, that you're working with hybrid design. It mixes up bodies and surface. Try to mirror the join (not the close surface) in generative shape design.
isn't there any other way? as explode in part design
Did it work?
Avoid hybrid design, then you can work much cleaner. Draw a single spoke in a body. Then you can mirror, copy, pattern and rotate the whole body including the spoke.
A screenshot would be helpful...
I think you didn't have selected the correct axis. maybe as Manuel said please send us a screenshot, it will be more helpfull for all of us.
Thanks so much.
Hope you can send us that.
i want to mirror the selected spoke
then rotate some angle
then pattern it