2x2 Spruce tree spawning bug

2x2 spruce trees randomly fail to spawn despite meeting all valid spawning conditions. Tested this in creative and survival, and some of them will just get stuck on age 1 and never grow. Seems to happen more often when two are planted near each other, one grows first and in a manner that would prevent the second from growing, the second one hits age 1 and fails to grow because of the obstruction, and then even once the obstruction is cleared that second one is now incapable of growing. Originally saw this in survival so I tested this in a creative world clearing a 20 block radius and applying over 1000 bone meal and still no growth.