Tex. R. App. P. 57.5
As amended through August 27, 2024
If a direct appeal to the Supreme Court is filed, the parties to the appeal must not, while that appeal is pending, pursue an appeal to the court of appeals. But if the direct appeal is dismissed, any party may pursue any other appeal available at the time when the direct appeal was filed. The other appeal must be perfected within ten15 days after dismissal of the direct appeal or the date of the Supreme Court's ruling on a timely filed motion for rehearing.
Tex. R. App. P. 57.5