Fix PDF documentation build (#4236)

Author: bouweandela

doc/sphinx/source/conf.py

@@ -275,6 +275,7 @@
     # Additional stuff for the LaTeX preamble.
     'preamble':
     r'''
+   \maxdeadcycles=1000
    \makeatletter
    \renewcommand{\maketitle}{
      \newcommand{\MONTH}{%