Ho to Sync Appearance of Mirrored parts with Original parts within Assembly?

Hi Guys,

I know that those similar posts have been addressed so many times but I have not seen anything that might help me.

Would you know any trick about how to Synchronize appearance of mirrored parts within assembly with the original parts?

Why mirrored part within assembly don't update it's appearance when the original parts appearance is changed?

So far, I have been forced to copy/paste appearance of every mirrored part which is absolutely terrible solution. ( assemblies of 250 parts specially )

Is there any trick to have this done automatically so every mirrored part within assembly changes its appearance when original parts appearance changes?

Thank you so much!!!!!

SolidworksAssemblies