Hi
@AustinAnderson,
Welcome to the forum!
I took my 9mm Ronin to the range today and put 60 flawless rounds through it. Sorry to hear you had an issue with yours. Brand new guns can be ammo sensitive and generally can require a break-in period of 200+ rounds.
Did the slide lock malfunction occur with the same magazine? Different magazines?
Are you using a "thumbs forward" grip? I have to be careful with a couple of my pistols because my fat thumbs will sometimes ride the slide release and prevent the slide from locking back on an empty magazine. Is your thumb under the slide release, possibly pushing it up when you don't want it to? I must remember to keep my thumbs away from the slide lock.
It sounds like you've done some research into this behavior. Good on you. It could possibly be a defect. Those happen on rare occasions. I would complete a break-in of at least 200 rounds and note the behavior. Try some different ammo. If it's still acting up then an RMA to the mother ship may be in order. SA has good warranty support.
Keep us informed.
Thank you for your indulgence,
BassCliff