Just got my Hardcore DH to 70 and waited for the trophy to pop and it did, then waited for the plat only to see that even though i’ve completed the demolition derby challenge the ps trophy didn’t pop 
is there an easy way to fix this? I dont have any friends who play this. Sorry if this has been covered somewhere but I am super desperate.
I am not sure what you were looking for. Are you talking about the toast popup that says you broke 50 items? Even if the popup does not appear, you should still get the achievement. Also, this is not a coop achievement…
Just wondering if there’s an easy way to reset a challenge. The Demolition Derby achievement in-game triggered showing that I broke the 50 items which should trigger the playstation trophy but the trophy didn’t pop. Looking online it looks like the way is to completely delete my entire Diablo game and start from scratch which is terrifying to me after like 800 hours of play logged lol.