After the starting the game from Steam, I hear music but otherwise black screen. No menus anymore, only the lower right corner 'Join PA Chat, notifications and time' is seen. I have a RX 460 with Mesa drivers
I have a similar issue on Antergos with Gnome on Wayland using an intel HD4000 gpu. I worked until an update (had not played in a while). The log file is attached.
I have same issue (Antergos). When I start the game, I can see loading screen which is OK, but the menu is black and not even resizing the window works (menu only flashes for a moment during resizing). Only the social bar is visible (it shows offline here because PA is not run via steam). And when I try to click on things blindly, it seems that nothing happens (from absence of audio feedback). Of course the black screen issue happens only with --software-ui switch. But PA doesn't work properly without --software-ui, on my laptop (with Nvidia optimus). When I use Intel graphics, everything is too dark (that's probably different bug and it affects more games). When I use Nvidia, I get image corruptions. And with both, menus don't render properly. - black menu with --software-ui I've tried removing all mods and it didn't help. Then I tried with PA with different versions of Ubuntu (16.04, 16.10, 17.04) and it works only on 16.04. It used to work on 16.10 for me before but then it stopped working after some update (probably kernel or mesa).