Can't progres in Delve mine on the main track

When i go to the mine and select to go on the main track, the cart is starting but when it's near the end it stops just before and I can't do anything at that point. I thought that if I'll go beside that point and come back to the main path it would be ok but no.

I believe this happens when the main shaft that Niko digs as you progress through the story intersects an existing path in the mine.

What might help GGG get to the bottom of this bug is if you go into your mine either the mine it self or if you don't mind wasting some Sulphite travel to the node in question and when you get there type /bug into chat this will produce a bug reference number, note it down and post it here, GGG use that number to recreate the instance you where in and can then use it try and track down the bug.