Move command does not fix using statements

I frequently use the "Move" command to move a class into another library.  Most of the time this does save time.  However, I frequently have broken code because using statements were not added to the appropriate files.  The documentation says it will do this.  Could I be doing something wrong?

Usually this occurs after the move command issues a warning about missing references.  I add the missing references, rebuild, and then try the move again.  Many times, the same warning appears even though the references are set, so I continue.

Also, this warning usually has message about mscorlib is missing.  mscorlib is automatically added, so I'm not sure why this occurs.

Thanks to anyone that can provide insight.

Mike