Hi @Retired_mod ,

Turns out it was actually a Java 8 bug:

IllegalArgumentException: Java 8 has a bug to support stand-alone form (3 or more 'L' or 'q' in the pattern string). Please use 'M' or 'Q' instead, or upgrade your Java version. For more details, please read https://bugs.openjdk.java.net/browse/JDK-8114833

Upgarding to Java 11 fixed the issue.

Kind regards