The Big Drill exploding on reentry when beyond a heatshield in 1.2.2
Here's a simple test with screenshots: a ship is put on a highly eccentric orbit around Eve and reenters the atmosphere. The big drill explodes in a few seconds.
The drill is far from the heatshield when raised. It will stick through it if extended. And it is the only part that glows. Other parts are fine, and none is glowing red.
Apparently, the old bug is still there.