Heath's housing stock is mostly 2000s construction, with the area's median build year sitting around 2001 - newer than a lot of what this region covers. Newer doesn't mean problem-free, though. Builders in that era tended to spec lighter-duty track brackets and standard-width rollers to hit a price point, and after two decades those brackets work loose at the lag screws. A loose bracket lets the track flex sideways every time the door cycles, and eventually a roller walks right out of the channel.
The region sits in a mild climate band with occasional freeze, so you're not dealing with the track distortion that comes from hard freeze-thaw cycles the way colder regions do. What you do get here is wind load on wide double doors, which is common in newer subdivisions built with bigger garage openings than the older housing stock in this part of Texas. A gust catching an open door, or a door closing off-square because the opener's travel limits drifted, is usually what starts the track separation.