Not sure if bug or intentional, but at least this one is easy to repro. 1) Make a minimal tech with just cab and GC SCU (wheels optional) 2) Sprinkle some random blocks around on the ground. 3) Anchor the SCU tech, de-anchor immediately. 4) Count (nonstop) to 10. 4) Re-anchor. 5) Observe the activation time. As long as you re-anchor before the countdown finishes, it will be as if you were anchored for the whole time. With HE SCU, count to 7 instead and with GSO SCU, to 5 or 6.