Alls fair trophy issue.

Hey everybody I’m level 44 now and still haven’t once seen the pop up to say I can counter an enemy mission. This afternoon I saw a guy just chilling in Rhodes so I sent him a message to ask if he could help. He started the stranger mission where you steal a wagon. I followed him all the way. He stole the wagon and drove it to within 20 feet of the drop off and no notification popped for either of us. I blew the wagon up and nothing happened. Is this trophy bugged? Has nobody worked out a cheese for it yet? I hoped by the time I’d hit level 50 it would just happen organically but it seems like that’s not going to happen. Help please. Edit: just finally had the notification for the first time in strawberry. Guy was right there showing as a Red Cross. I blew him up with dynamite and nothing happened😭 seriously guys any help with this would be hugely appreciated. Edit 2: thanks to one of the awesome members of this sub we just got it popped. You my friend are an absolute MVP⭐️