The dropdown says 1.2.7 doesn't exist, but 1.2.7 is the version I am on, and there is no update available from the microsoft store.

On Realms, loaded minecarts are not starting up like they are supposed to on a powered rail up against a solid block. Minecart seems to partially stick into the solid block, and does not move. Removing power, and repowering the rail does not fix the issue. Logging out of the realm and back in, causes the minecart to take off like it is supposed to, if there is nothing to pick up (villager) the minecart bounces off the solid block like it should, and keeps going. If there is a villager to pick up, the minecart freezes in place, and will not move again without logging back out and in.