[RESOLVED]Can't continue in singleplayer game

[Woody Cox]

Hey, as the title says.. I have a problem about this mission- Return to the survivor camp on the beach(Gone Missing).. once I slided down all the ropes, a cinematic was supposed to happen.. but nothing happened at all! it would be a great shame for me to not finish the game, since I tried quite hard finding and collecting everything possible, until this very moment. would be glad if anyone could help me! I can actually talk to the people being at the camp before I was supposed to bring them the tools, but there are also a few bugs- Sam is above the ground(supposed to be sitting on a crate) and there's also a flying shotgun plus someone/something invisible at the place of the shotgun, because Lara starts jumping on an invisible barrier.. Also, I have only 1 saved games, since I loaded the older one to see if it works. Oh, and is it normal that I don't have access to the Research Lab? I can get there, but can't climb over the fence to the other wall afterwards, and there's no other access(at least I haven't seen any..) Yes, I have 2 missions available at once.. :D
Thank you for helping me, I mean it!
EDIT: I managed to resolve it myself.. all I had to do was to climb back up there again(video in the comments at 19:45) and then slide down on the ropes. Apparently the script activates only after you jump down from the third last rope.

[Woody Cox]

Yes exactly that at 19:45. However, I managed to resolve this myself(edited my post) and all I had to do was to slide down the ropes again(it got bugged after I died or something because I didn't manage to jump on one of the three ropes there.) But thank you for trying to help me! I mean it!

[姬霸猫]

Emmmmmm