I'm not sure what I did, or if it was the game, but the dialogue looped right at the end for me. At the part where Doglas says "I think I know who the mastermind of this case is", the next line is Max repeating the usual "Welcome back, Detective!" and so on and so on. I've clicked for a while now and I'm sure it's not going to proceed.
But before that part I really enjoyed this game. I love the worldbuilding of this dog world that's been created, and also Max is adorable. 10/10 borks. Plus I've had this hunch of who was the killer from the start and everything I've found out so far seems to point in that direction :D