About word2016 for mac and endnote version compatibility test results as follows:
- word2016 v16.xx endnote x8.0 not compatible with the version of
the official website document display, endnote x8.0 x8.2 and need to upgrade to a later version - word2016 v16.16 perfectly compatible with the endnote x9.0 version
on the map:  
If in doubt, welcome exchange.