Cable failure almost always starts the same way: one strand at a time, fraying over the bottom bracket or the drum where the cable wraps, until the last few threads give out under a cold engine and the door drops hard on one side. On a double door that's two cables doing the same job off a shared torsion bar, so a frayed cable rarely fails alone - the other side is usually close behind, just a few weeks out.
Jenison's housing stock centers on a median year built of 1973, inside the 1960s-70s stretch that covers most of this part of the service area. Doors built in that 1973 run went up with galvanized aircraft cable on steel drums, not the vinyl-coated cable that came later, and that older cable corrodes from the inside in a way you won't catch just by looking at the coating.
This is also a cold-climate region, and that matters more than people think. In this cold-climate band, the grease in a 1970s drum assembly stiffens hard enough that a borderline cable - one already down a strand or two - gives out on the first hard cold morning of the season. The door that worked fine in September suddenly won't open in January, and it's rarely a coincidence.