I'm trying to remember my issue. I did put Hogue grips on my 4506 but I don't know if it was before or after it went back for service. When all this initially happened I had the gun apart on my code 7 at my house, for what reason I don't remember. I put it back together and when I tried dry firing it nothing happened. I am trying to remember how I knew something was wrong. I know I wasn't using live rounds but something wasn't right. I kept taking it apart, putting it back together and something wasn't working. From memory I could not get the slide back on but it might have been I got it on and it just wasn't working. Initially I thought I broke it somehow when I took it apart.
I remember calling my Sergeant trying to explain my gun was broken and why this happened during Code 7; eventually taking it to the Service Center where they really broke it.