I am having the same problem with ENDNOTE X9 and ENDNOTE X20. I just bouth the upgrade for the last version but the bug continues.
When I edit the Citations Templates - In-Text Citations and I made the Transformation for UPPERCASE in author, the document in Word lost the format.
ex.:
Citation
(AUTHOR, |Year|, p. Cited Pages|)
The result is:
…valor científico, econômico, social [e]/ou cultural” (AUTHOR, 2016l, p. 37)
and it should be as:
…valor científico, econômico, social [e]/ou cultural” (PACHECO, 2016, p. 37).