Twisted Domain/Breachstone bug

bought breachstone for 60ex, loaded in Twisted Domain, timer begins but no mobs spawn and the map reaches an invisible wall even though the minimap shows a path continuing onwards. the timer ran out and I get sent back to the breach spawn point and die.

this is my second time running breachstone, first time everything worked fine and I fought Xesht, but this time I just lost 60ex and 10% xp. wondering if anyone else had this issue?

Just happened to me.

Did this ever get answered? It's happened to me too but breach stones are 200+ex on currency exchange now