reflect tool stuks

[Terrence39014351qyfm]

It always stuks when I use the reflected tool ，I don't know why and I want to know the reason ，

[Ton Frederiks]

Can you describe the steps?

[Mohammad.Harb]

When using the reflect tool, Are you selecting the enitre object with the Selection tool or  anchor points with the direct selection tool ? 

[Terrence39014351qyfm]

Yes，I selected the entire  objects ，

and I don't know why it reterns to normal after a few days later  

[Mohammad.Harb]

Please post a screenshot to better understand your case.