OS App upgrade now scheduled for Wednesday. Still got platform issues apparently. Smacks of inadequate testing before roll-out.
I downloaded an upgrade (on iPhone) yesterday, then re-downloaded maps.
I tried it today..just walking to local shops and back...and found it almost un-usable..the map display is very unstable.
I agree with you..it looks near certain that it has not been properly tested. Disappointing but not that surprising..it happens so often in all sorts of software developments.