Stickshifter, even if we did not put in the locks on the uphill and downhill runs, we still tried them. I had no trouble inserting. The center differential lock is inserted as in the Defender or Discovery, only that now a ring must be pulled up at the gear knob. This is because you don’t accidentally press the lever and suddenly switch from lo to hi or lock.
I can also square this knob, which means from Hi to Lo to Lo Lock to High Lock and back to High.
I use my gear ratio very often with the Land Rovers, and even there the lock is not always inserted immediately. But this is also clear if you know the mechanics.A short trip back and forth makes them snap in.
For me, this is not bad, but completely normal.