Goo design bad quality - Granite Gear Leopard V.C. 46 Backpack

It is light backpack with versatile mounting system and straps. At first I really liked it when I hiked in Big Bend National park with about 25 lbs of gear. Into 4 miles hike, hip belt's strap buckle came off while adjusting the strap rendering hip belt useless. It looks like stitching was done poorly and missed QA check. I had to improvise using hip belt's mounting system to minimize lateral movement. I never had such issue with any backpacks I purchased. The hip belt's strap and buckle is tiny. I wish it was stitched well and last me several good backpacking trips. I do get lemon rarely. I should have inspected further.