11.56.3 Can you answer these questions?

11.56.3.1 ocgx2 links have rugged edges or disappear entirely

https://tex.stackexchange.com/landing/r/digest?cta=question&id=749661

I am using ocgx2 to have the hyperref links printed in black on paper. If the package is included with the ocgcolorlinks options, the text of all links becomes rugged/fringy/frayed. See this example: 
\... 
[hyperref] [links] [ocgx2] [oxg]
 

asked by HerpDerpington https://tex.stackexchange.com/landing/r/digest?cta=user&id=82853 Score of 1

11.56.3.2 Interference of packages polyglossia and titlesec

https://tex.stackexchange.com/landing/r/digest?cta=question&id=749807

Case 1: Package titlesec without polyglossia. 
\documentclass[12pt]{extreport} 
\usepackage{fontspec} 
\usepackage{fouriernc} 
\usepackage{eucal} 
\usepackage{titlesec} 
\titleformat{\chapter} 
{\normalfont\... 
[titlesec] [polyglossia]
 

asked by Rustam Mamin https://tex.stackexchange.com/landing/r/digest?cta=user&id=164912 Score of 1

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 0

11.56.3.3 Summation sign wrongly positioned on the baseline with JuliaMono

https://tex.stackexchange.com/landing/r/digest?cta=question&id=749884

Ia^\200\231m using JuliaMono as my monospace font via \setmonofont. 
But for some reason the summation sign a^\210\221 is incorrectly placed on the base line. 
Here is how it looks like with either LuaLaTeX or XeLaTeX: 
... 
[xetex] [luatex] [fontspec] [unicode] [baseline]
 

asked by Jendrik Stelzner https://tex.stackexchange.com/landing/r/digest?cta=user&id=108717 Score of 1

answered by Jendrik Stelzner https://tex.stackexchange.com/landing/r/digest?cta=user&id=108717 Score of 0