Hey! I saw your stream (not Live though, sorry) And I could really feel your frustration thru the screen haha. sorry!
I will be updating my hotspots to be visible. I'm also considering adding a "show hotspots" button as a hint system.
That would be the quick fix I guess...
As for the voices. Its a mix. I have friends that are professional voice actors that did some lines and were also super nice to let me use those already recorded lines to generate new dialogue, (mostly due to time contraints and the time difference between Europe and the US)