When using the draw.io plug-in under Confluence environment, the drawing cannot be saved if there are any Chinese character in the drawing.
What version of the plugin are you using please?
It is 1.0.7-AC
Yes, error can be reproduced, we're taking a look at it.
This is now fixed. If you have an existing diagram that you cannot save save it via File->Export As->Plain (XML). You can then refresh the browser, create a new diagram and drag that saved diagram into the page to load it back.
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