I have the same problem here, none of the options or buttons responds to any mouse click, and the parameter menu has incomplete loading. But the problem goes away if I reset my web browser profile completely (i.e. deleting all configurations and removing all customization - naturally I did a backup before trying it). My hypothesis is that my content blocker prevented something to load initially, but its effect remains even after it's disabled afterwards.
For now, if you have this problem, use a different web browser as the workaround.