Button values dropping glyphs on export to interactive PDF
I am posting this bug report here, as well as at the Uservoice, because I'm hoping that people can discover it here and upvote it at the Uservoice.
https://indesign.uservoice.com/forums/601180-adobe-indesign-bugs/suggestions/48650594-button-value
I'm elbows-deep in a major 25-langauge localization project, and I've found a bug where anything outside of ASCII in a "button value" fails to export to interactive PDF. Since it's a long & complicated form, I'm hoping to avoid being stuck with post-export remediation of the incomplete PDF.
If I set the Button Value in the Buttons and Forms panel:

and export to Interactive PDF, then the Button Value drops any character outside of ASCII:

Note that the Vietnamese has lost half its glyphs, and the Russian is gone entirely.

