Hello,
According to the warning the language specific values in attribute Ranges overlap. This would result in a Unicode code point addressing multiple different glyphs.
When you double click the warning the corresponding location is shown in Inspector. There you see the attribute Ranges configured for language Chinese with the value 0x02-0xFF and for language Default with value 0x01-0xFF. The ranges thus overlap.
To disable the warning adapt the values in the Ranges attribute so that they don't overlap. Specify in Default the range 0x01-0xFF. In language Chinese specify only the codes of relevant Chinese characters. See also Localize a font resource.
Best regards
Paul Banach
