[bonesmccoy]

Thermal protection would only be an issue if significant tile loss occurred and a wing burned.

[snopercod]

Looked to me like they lost the elevons.

[Jorge]

Thermal protection would only be an issue if significant tile loss occurred and a wing burned.

They are now saying the something hit a wing during lift off, and suspect it knocked off tiles which exposed surface not designed to handle the heat or stress of re-entry.