Am I missing a piece?

Hey guys,
 
     I was cleaning out my car today, and I noticed something weird.  On the front seat rails, there are plastic covers that conceal the bolts that hold the rails to the floor.  They extend the entire length of the rail.  Both rails are covered on the passenger side, but only the outside of the driver's side is covered.  Is there supposed to be a cover on the inside driver's side seat or not?  Can anybody check for me?  Thanks in advance.
 
Alan 

None of them have this cover on left side front seat rail even the RHD European model, it's normal. Been covered before
here

Thanks.  I thought I'd read it somewhere, but I couldn't find it.
 

I think the title was almost identical too.