I didn't found anything yet on the web to fix the issue...
I uploaded a new build but nothing different regarding Mac itself...
I will continue searching, sorry about that :/
No worries! I got this game through the bundle for racial justice & equality, so if I simply can't access this game, while disappointing, I personally will be fine. I wanted to let you know so you could be aware of the issue, and if it was fixable that was a bonus. Thank you very much for your time and effort that you've put into this game and into trying to help me. If it ever does get resolved (or perhaps I get a non mac computer somewhere down the line) I will give the game a play.
I will receive a mac book pro tomorrow lend by a dev friend to test that. I will remove the mac build from the game description if I have the same problem on this computer. The weird thing is all my mac builds (for my other games) available on Steam are working perfectly (I have some people on Discord using Mac and giving me feedback during alphas or betas)...