Housing in the Allen service area was mostly built between 1971 and 2015, with the bulk of that stock going up around 2005. That matters for this specific failure because doors and track hardware installed during the big build-out years are now old enough that the original galvanized track rails and stamped brackets are showing metal fatigue, but the houses aren't old enough that most owners have replaced the system once already. It's the awkward middle age for garage door hardware.
The climate here runs on the warmer side rather than seeing heavy freeze-thaw cycles, so this isn't a frost-heave problem like you'd get further north. Instead, the wear pattern we see is heat-cycle related: track brackets that were screwed into header framing during construction expand and contract enough over repeated summers that the screws back out a fraction at a time, and eventually a bracket that's a few degrees out of true lets a roller ride up and off the rail. It's slow, it's mechanical, and it's very fixable, but it's also why an off-track door in a 2000s-era house here is more often a bracket and alignment issue than a snapped part.