Lock Pick Bug in Prologue

[a]

I'm stuck at the point in the prologue after you ko'd the guardian but every time when I try to unlock the door it just shows me the inner view of the room and I can't unlock it. Please help me.

[Ryurey]

Weird.. i would try from a different save point to open the door.
At chapter 6 is a light when you come to close to it the game break and the same save made the bug heavier by even passing by the room where the light is made my game break everytime.
Another save point helped to let me play the chapter and come closer to that Light again before it breaks still trying few things on how and when it bugs :/