Texas summers cook roofs at 100 degrees plus and that heat shrinks and cracks...

https://ace-wiki.win/index.php/Ignoring_Hail_Damage_Because_Shingles_Look_Intact_From_the_Ground%3F_Here%E2%80%99s_What_Texas_Homeowners_Need_to_Know

Texas summers cook roofs at 100 degrees plus and that heat shrinks and cracks shingles over time. When spring hail rolls through, those cracks let water in quick. Fix problems early or expect a soaked ceiling and a fat repair bill