Activation groups set in Build not set after launch

While building this plane, I set some activation groups as follows:
1 "Turbojets" on
2 "Rocket" off
4 "Gyros" off

With the plane on the runway, I observed the following problems:
A. Activation groups 1 2 & 4 are not named
B. Activation group 1 was initialized in the off state

Point B might need some discussion. I understand that the question of how staging should interact with activation may seem difficult, but it doesn't seem complicated from my perspective. As an experienced SSTO builder (in another game), my opinion is that activation groups should always take priority over staging. If an actvation group controls the activation of jet engines and it's set to 'on' at launch, then those engines should be on at launch.