I found two Graphical bugs in the training room . The first bug I found was in the storage room, with the sinners Sacrifice Storage machine. The player is able to go through it as it is not a solid object.

The second bug is with the player friendly (gray) sentinel. If you look at it from certain angles, it's feet are not on the ground.

The second bug is with the player friendly (gray) sentinel. If you look at it from certain angles, it's feet are not on the ground.