I am running on Windows 10 x64 and I can't complete the second level, I pressed the reset team button and I can't put a character out, icons click, but nothing happens, and I have characters. I consider this a bug because there is no way to exhibit characters and more... I think giving a player the opportunity to start a mission when you don't have anyone on your team is a very strange decision.
Oh shit. Yes indeed, that is totally not supposed to happens. I'm in a rework of the game and I guess the last version was bugged.
I am very sorry I'll make a new build tomorrow evening. I understand if you don't play it, but that would be mega awesome if you tried it to confirm everything is fixed.
I'll send another message here tomorrow just to let you know. Again thank you so much again for your report !