So uh I’m probably the only one experiencing this problem because I see no one on the forums talking about it,
So let’s say I’m using the spot directing or camera tool. After the first 3 previews those tools work perfectly. Afterwards I try using those tools and whenever i switch the modes (Scale- Move) (Zoom-Focus)
It’s still stuck on one mode. If that happens I’d have to refresh the page which is really annoying and makes me unmotivated to write :(((
I’m having this problem as well, and have to refresh every 5 minutes. I don’t know what’s going on, could be a glitch. 
Something that also happens to me is after I preview it for 3 or more times, it gets stuck and I can’t use the tools 
This happens to me too. Then shortly after it freezes up completely so I have to reload the page, it’s getting super annoying and it’s been like this for 2 weeks. lol
Yeah, everyone have that same problem too, always have to refresh when everything freezes.