Hello!

During descent, the 757-200 blew through an FMC speed restriction at 10,000 feet. Decent up to this point was normal -- VNAV engaged, 260 knots from 31,000 down to 10,000 feet as planned. Passing through 10,000 feet, VNAV pushes the airplane to 426 knots despite having the SPD Trans at 240/10000.

Here's a video of it. I started recording as soon as I heard the engines spool up. I intervened at the 0:14 mark.
https://youtu.be/dG4zh57nlkk

Video of the same flight, but at the top of descent: https://youtu.be/9csYRFQyGl8

Details:
KTPA to KATL
P3D 4.4
757-200 PW2037
version 1.303