Likely it is supply chain. If they had munged the tooling, it would have been evident pretty quickly. This constant pushing back of everything is indicative of the supply chain, and it isn't surprising. Put it this way, Apple has pushed Foxcon to move building their stuff out of China (whether where they move it is better or not, I leave that to time and space). Hard to tell whether it is the actual building of the units or whether it is the parts that go into them, things like chips and stuff.
I am glad I am planning to wire my layout for conventional control to start but wired where i can easily add the command base(s). I thought my layout build was slow (think the level of repairing highways), my layout may be done, wired and have scenery before the command stuff shows up at this point.
