Yes. The Motor Sich thing was the big one. IMO trust is gone, however China will still "play" with it.
If Ukraine is serious about being seen as not a US puppet, then it can show that by its actions.
There are many ways of doing so, such as Huawei for 5G, open up infrastructure sales, increased R&D cooperation, military ToT, allow more farmland to be sold to Chinese investors etc
They want to use China as a tool to strengthen their hand in negotiations with the Americans. There is a huge risk that they will confiscate new investments in the same fashion as Motor Sich. Fool me once shame on you, fool me twice shame on me.