Of course it's a flop. Cease-fires have been negotiated with Russia something two dozen times before. They just break them.

This is as idiotic as trying to negotiate with a thief. Russia has no legitimate grievance against Ukraine, or any of the other nations they've invaded recently. They're invading because they're evil people who want to steal land and resources. The only answer is to defeat them. Which is most effectively done by crushing the Russian economy.

Fortunately Ukraine keeps on blowing up Russian oil infrastructure. They'll win this if allowed to.