Hi, these are the things i found:
In the survival tree you have the skill node "AMS Overload 1" activated but no AMS equipped.
In the auxiliary tree you have the node "Adv. Salvos 1" activated, which will also give you the message that you are using nodes that does not effect your loadout, if you don't have arty- or airstrikes equipped.
Try to change "AMS Overload 1" to "Shock Absorbance 1" if you don't use AMS (but activate Shock Absorbance first and then deactivate AMS Overload or the skill tree will annoy you) and equip an arty- or airstrike for test purposes and your proplems should be solved.
PS: Im confused why you have this yellow warning sign in your mobility tree. The nodes should only effect things you can't influence and it doesn't show up in my mechlab, even when i remove the engine?
Edited by Erik Finnson, 30 August 2017 - 10:08 AM.