Exactly - it's a disgrace.
It doesn't scroll or zoom (out) properly. It's basically useless on a touch screen - again, a disgraceful effort from MS.
Meanwhile, I'm stuck with getting the guys to use the IPFS (web browser) version instead - fortunately the guy doesn't find it much different. (But the VPN bit that's annoying and we can't configure DirectAccess until we upgrade the AD).