I have a file with the following content:
and when I give the following command:
java -Djava.awt.headless=true -jar "D:/Programs/plantuml\plantuml.jar" -tlatex aa.pu
the resulting aa.latex I'm converting with pdflatex (or xelatex) and I get the error message:
! Extra }, or forgotten $.
l.22 ...plantuml.com/patreon (only 1$ per month!)}
Problem is the $-sign in latex this should be escaped by means of a backslash.
Same happens with the licence command as well and in the latex:nopremble mode
This happens with the latest plantuml.1.2018.7.jar file and also with the beta version that I downloaded 2018-06-13 around 10:25.