I think I found the problem ; it was due to a bad handling of the vertex buffer when there was too much meshes with an medium number of vertex (ie: the Seats in this case). Sometimes, it could work & some other times, it could fail...

Could u try to install the latest patch & let me know if it solves your problem or not ..?
==> https://www.managames.com/download.php?T ... ch_Tes.exe