CS-R2 struct change to CH-1 hook after load game

[blackcatIan]

1.I use 2 CS-R2, and then link them.
2.Save/quick save the game.
3.Load/quick load the game.
After 3 step, the CS-R2 on my vessel change to CH-1 hook.
Is this a bug?

version:1.7
Instealled mod: lastest version KAS, lastest version KIS

[ihsoft]

It's the way how legacy parts conversion works.