Same here.

Play for 1 to 2 hours and the screen starts flickering, notably if there are a lot of characters on screen. The textures slowly start to disappear and the characters start to become flickery invisible. After around 1 to 2 minutes the game just totally crashes out.

It's annoying in the middle of river raids as you can't save the game when it starts to glitch and have to do it all over again.

Feels like pretty classic memory management issues to me, hope you can release a fix! If it's out of memory, give us an option where we can lower the graphics quality and play for longer.

Same here.

Play for 1 to 2 hours and the screen starts flickering, notably if there are a lot of characters on screen. The textures slowly start to disappear and the characters start to become flickery invisible. After around 1 to 2 minutes the game just totally crashes out.

It's annoying in the middle of river raids as you can't save the game when it starts to glitch and have to do it all over again.

Feels like pretty classic memory management issues to me, hope you can release a fix! If it's out of memory, give us an option where we can lower the graphics quality and play for longer.