Guys this is why you work on your car trailer

Yeah, the welded together axle had the weld age-fatigue I guess. I didn't notice when it left, actually. I was towing with a box truck, and the trailer/car was invisible, even tho I have a rearview camera.
The one that broke had the electric brakes, but was built identical to the non/brake one pictured.
I check the tires and bearings each potty stop. With my shepherd with me, and my age, potty stops are frequent.