It was the long winter of diplomatic freeze between Beijing and Oslo for about nine years following the Liu Xiaobo case. Eventually the Chinese were able to move on from that case, not only because China needed the Nordic countries' help in terms of their Arctic policy and other matters in the international arena, but also because there was this sense that after nine years the issue of Liu Xiaobo was no longer as pressing for the Chinese government. Canada could wait for this issue to go away.
On March 9th, 2020. See this statement in context.