Well, I have noticed two or three critical bugs in this engine. The first is when Lara grabs on ledge and player press left arrow Lara will fall down:
https://www.youtube.com/watch?v=wTrsLazjc-g
The second one is when Lara climbs on wall and her animation is changed to "one step ladder animation" and player press left or right arrow she will fall down immediately. Actually this is old bug:
https://www.youtube.com/watch?v=vfUEihQfN10
Maybe it is connected with this bug:
https://www.youtube.com/watch?v=XZrliT6AAiQ
Anyway I have noticed that Tesla Rus fixed grabbing bug, falling bug and so on. Great job