Im stuck Azurite mines..

This is the first time playing PoE where I played past act 2 I'm having fun.. I was at least. I get to act 4 and there's the Azurite mine .. I used the cart no problem the first time I followed behind it it did the mining as I killed enemies then Azurite explodes now the cart will not move past the first two spots..

I have spent the last two hours looking up how to continue.. asked in global .. had an 86 come into my game and he couldnt figure it out.. It says on my screen use dynamite,.. I got dynamite I had flashes now Im out but I cannot find a fractured wall I watched 3 different videos on how to find fractured walls THERES NO VIDEOS of someone entering it for the first time every single video already has the map laid out a bunch ... Theres literally no nodes that dont have a connection to them on my map but in bright gold letters its telling me I need to blow up a wall..

I cannot believe this is what's going to stop someone whos played APRG's for years (like hours a day) from enjoying PoE but its looking like it might.

Everyone in global is like its self explanatory (Yeah like everything else was if you got at least a tumbleweed turning around in that brain) This fkn mechanic it feels like its stuck til I find a wall but it wont let me buy more flares because I need azurite but of course I cant move my cart (crawler) to get more azurite.. The 86 told me that you do get azurite just going through maps later so I can come back to it and purchase more but I just spent 2 hours trying to do this I wanna figure out why its not working.. Like I shared screens in a call with the guy and we couldnt figure it out, even went to one of his areas.

There has been nothing in this game so far I couldnt figure out pathing wise within 5 minutes before this.. I cant tell if its bugged or what but I tried everything I can think of.. including dashing into dark areas chugging potions as I tried to find walls several times earning me my first several deaths

Please Help.. I cannot be the only one who got stuck at this part

(dunno if it helps but I did exit game after doing the first mining node)

Adding link to video to show what Im talking about.

https://www.youtube.com/watch?v=DipjhXRxWkw

Okay thanks. I started just going through the act IV storyline I guess I'll come back to it. Just kinda bugs me, I had gotten this far without grouping, occasionally I'd ask global for quick tips or watch a video but this has left me stumped.