The 5th Circuit Court of Appeals opinion is available, here in pdf.
And here’s the Conclusion (caps are theirs, underlined emphasis is mine)
Appellees failed to demonstrate constitutional flaws in H.B. 15. Accordingly, they cannot prove a substantial likelihood of success on each of their First Amendment and vagueness claims. This is fatal to their application for a preliminary injunction. Accordingly, we VACATE the district court’s preliminary injunction, REMAND for further proceedings consistent with this opinion, and any further appeals in this matter will be heard by this panel.