uneven

Hello! I have a 2020 Rubicon with about 38K miles. At 28K I had Kenda Klever R/T mounted and an alignment done. They are Lt 35 x 10.5. No lift on the truck. The front two tires are now almost entirely worn out - unevenly - mostly on the inside of each. The rears have almost no sign of wear...

What can cause this type of tire wear? Both of my rear tires on my Gladiator are wearing unevenly on the outside only. I did a tire rotation & balance about 4K miles ago, but this wear seems to be getting worse. Tires are inflated to 40 PSI. These are OEM tires. Stock suspension with air...