Invisible kongpagnions > game bug : So i wasn't able to pick my kongpanions : the screen is grey/white. But if you can "see" an arrow left/right and click it, your kongpanions is "activate" no matter if you unlock or no the way.
But after your next run, the game is "stuck" : you won't be able to move the map screen, kongpanion keep move (flashing),no tooltip. In the game you can't see the power of the canon + canon stuck. And the game is at 97% complete 150/152, but you still need to buy all perk, even if you reload, it's still stuck. So the only way is to delete the save and restart.