The U.S. and China descended on Germany at the weekend looking to patch up a new rift opened by the uproar over a Chinese balloon. But a meeting between their top diplomats showed how difficult it will be to compromise.

Secretary of State Antony Blinken and Chinese State Councilor Wang Yi traded barbs on everything from the balloon and Taiwan to North Korea and Russia in their first meeting since the high-altitude craft traversed the U.S. and provoked an acrimonious round of finger pointing. The top U.S. diplomat also said China was weighing whether to give Russia weapons for its war in Ukraine, a move that would ratchet up tension even further.

It all underscored how, for all the claims from President Joe Biden and President Xi Jinping about their desire to steady ties, neither side seems capable of doing so. What was meant to pave the way for a Blinken trip to Beijing — he canceled a visit once the balloon was spotted — only seemed to make prospects more remote. And while Biden said last week he would speak with Xi to defuse tensions, there was no indication of when that might happen.