This question has been addressed in 1 Texas court opinion:
COA05 — February 5, 2026
When a party fails to appear for trial, leading to a dismissal for want of prosecution, Texas Rule of Civil Procedure 165a(3) requires the court to reinstate the case if the failure was due to an 'accident or mistake' rather than 'conscious indifference.' In this case, a law firm missed a trial setting because of a clerical calendaring error and a mistaken belief that a proposed scheduling order would be signed. The trial court denied reinstatement, finding the attorney's reliance on unsigned orders unreasonable. The Dallas Court of Appeals reversed this decision, holding that even if an attorney’s mistake is negligent or 'objectively unreasonable,' it does not constitute conscious indifference. As long as the failure to appear was not intentional or a purposeful disregard of the court's authority, the trial court must reinstate the case.
Litigation Takeaway
“A simple clerical error or an 'unreasonable' misunderstanding of a court deadline is sufficient to reinstate a dismissed case, as the law protects litigants from losing their day in court due to an attorney’s non-intentional administrative mistakes.”