Tomas Hala
21. April 2018 um 09:09
Hi Pablo,

unfortunately, this does not work (on my computer with TL2017).

Proper Czech quotation marks are available via \quotation command:

But it is language independent problem, I did more tests:
neither Czech, nor US, nor Dutch, nor German quotation marks are hanging.
Without influence is also font (font family), tested on modern, libertine,
EB Garamond 12 from your example, times...

No change appeared switching the order of commands
\definefontfeature and \setupalign.