Bugs in The Dragon's Deceit

arkyboy

There were several bugs with the grapple gun either unseen while grappling or was seen while traversing & not in use. There is also a bug preventing me from advancing, in the Holes & Corners portion "shoot weak spot" of the mission. I shoot it & the rocks don't fall. I have dropped the mission & picked it back up, I have logged out & force verified & restarted the mission several times all with the same result.