Split fiction, Chapter Factory Entrance, Moving Box/Container Puzzle BUG

This problem was earlier descriebed in the discussion "Factory Entrance? mismatching timing".

We have already updated the entire Window system, graphic drivers, verified the game integrity on Steam, turn off any unnecessary tabs/programs on task manager. We’re trying to play on weekdays, going to other levels and started the chapter from the beginning, but the issue has not been solved. On the other levels and puzzles everything is perfect, but when it comes to moving boxes we're stuck again and out of sync. When I explode the grenade near the blue field, my friend can not get through and jump because she does not see the hole. 

Please help us if possible. We were looking forward to play this game but the adventure stopped.