At negotiations, Ukraine clearly outlined its priorities, beginning with a demand for a full ceasefire and a full cessation of strikes on civilian infrastructure. By failing to accept this, or a leaders' meeting, Russia continues to demonstrate it's not ready to end the war. However, it's not too late to change track and bring this madness to an end.
Russia and Ukraine discussed their respective memoranda for peace and while the countries remain far apart, Russia hopes this work continues, including with the formation of working groups to resolve these disputes more efficiently. That's why it's not appropriate for leaders to negotiate these issues from scratch. Russia continues to work with Ukraine on humanitarian issues, though it has not fulfilled some of its obligations.