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 › Wrong Results of examples/freeSurface (v1.8.1) › Reply To: Wrong Results of examples/freeSurface (v1.8.1) November 20, 2025 at 4:51 pm #10984 AdrianKeymaster This is now fixed. Can you pull the latest master and confirm that it also fixes your case?