thank you. The strange thing is we filled this container before. But later we did a lot of animation in this scene where this container was. We even tried to use lucid later but we had problems with liquid. So 2 months later we decided to fill this container again to do aniamtion and it does not work anymore.
From initial tests the problem is with the automatic segmentation of the container into convex shapes. It could help separating it into parts and using each one as a separate convex collision object.
