one reason I buy Smith and Wesson, Leupold, Ruger etc. is that if you have a problem they will fix it, usually at no charge. I have a 45 Shield that shoots as good as I do and I enjoy owning it. I just bought a 9mm Shield which I am going to try out today and maybe get rid of my Glock 43. I like both guns regards size however the Shield just gives you a bit more to hold onto, hope it works today or I will be posting along with you!!!
I had given the Walther PPS a thought and it is supposed to be more accurate, it just looks top heavy to me and "combat accuracy" from a small gun seems to be "ok" on a B-27 at 7 yards. I am not sure I am a good enough shot to use the accuracy that some guns offer!
Hoping they will fix it to your satisfaction. Keep us informed.
