When building reactors and stabilizer blocks with the brush tool to make larger builds, (currently making a 1.3k ship) the green selection that shows stabilizers being utilized by the reactors is only selecting one block vs the entire block of stabilizers. Adding more stabilizers with the brush tool will automatically make all stabilizers green and stabilization will go from 0.1% to 100% but only if you use a larger brush. Using a size one brush will result in the stabilization level remaining the same. Any further blocks added or reactors with a brush size of one will result in a instant 0.1% stabilization and only one reactor stabilizer will be green out of the total EDIT: (after more testing I found the issue only happens when going over 476,300 power regan. after doing so the game will automatically only connect to one stabilizer until you take the brush tool and place more then one stabilizer.