Due to recent bot attacks we have changed the sign-up process. If you want to participate in our forum please send a message via our contact form. › Forums › OpenLB › Bug Reports › Maximum size of a cuboid for writing to .vti › Re: Maximum size of a cuboid for writing to .vti February 26, 2018 at 2:39 pm #2789 jbMember Ok, great! Thanks for the update with the improved fix.