1.8.3 Can you answer these questions?

1.8.3.1 Code worked in Overleaf but not in MiKTeX
1.8.3.2 Need to make a quad chart that puts 4 small pages in one page within an article document
1.8.3.3 chemmacros error but output ok

Can you answer these?

1.8.3.1 Code worked in Overleaf but not in MiKTeX

http://tex.stackexchange.com/questions/266700/code-worked-in-overleaf-but-not-in-miktex

I am trying to use Royal Initialen to decorate one of my document. The code I use is, 
\documentclass[danish,a4paper,11pt]{scrartcl} 
\usepackage[utf8]{inputenc} 
\usepackage{babel} 
\usepackage{slantsc} 
...
 
- asked by user 170039 2votes
1.8.3.2 Need to make a quad chart that puts 4 small pages in one page within an article document

http://tex.stackexchange.com/questions/266314/need-to-make-a-quad-chart-that-puts-4-small-pages-in-one-page-within-an-article

EDIT: See end of question. 
I need to maintain the same outer margins that are defined for the rest of the document, and include a title for the quad chart. Text in one quad shouldn't flow into the  ...
 
- asked by Michael Chapiro 4votes
1.8.3.3 chemmacros error but output ok

http://tex.stackexchange.com/questions/266481/chemmacros-error-but-output-ok

Take the following simple piece of code: 
\documentclass{standalone} 
\usepackage{chemmacros} 
\begin{document} 
\ch{ HA + H2O <=> H3O+ + A\mch} 
\end{document} 
It produces the correct output 
...
 
- asked by Leeser 3votes