Kerbal Space Program

Issue: after reverting to VAB (or returning to space center), 3D picking fails. Buttons still highlight and work, but mousing over 3D objects does not highlight them, nor can one click on them.

Seems linked to Reentry flames.

Reproduce:
1. In VAB, create a new vessel: Octo core, 2x orange tanks, Mainsail.
2. Launch.
3. Fly up and turn, until you get reentry flames.
4. Revert to VAB.

Note that parts on the vessel do not highlight, though GUI buttons do. If you exit to space center, buildings do not get picked. If you exit to main menu, the text does not get picked (the text is, presumably, 3D gameobjects rather than GUI buttons).

If you are in the VAB with this issue occurring and launch again, however, picking is restored. You can then safely revert or return to space center. If you exited to space center rather than reverting, however, then that option will not be available and you must exit the game the hard way.

High since it will prevent any but a hard exit (ALT-F4 on Windows).