Hello! As you can see on the uploaded screenshots, that location is impossible to an ogryn take the grimoire. He is too big to go through the entrance. It is on one of the newest map in the game, maybe the Comms-plex 154/sf.
I also experienced fev places on other maps where the grim was located behind barrels at one of the ends of the tunnels[if you jumped on them you couldn’t reach it;bad design like the ones that appear under stairs or in walls] on the location where the trains go above the way on…I think it was the map where you recover ammo from a lockers in a train wagons at end.