Awesome, thanks so much for the information! I was able to reproduce the issue on my end and I think I have a solution. The issue seems to be with the joint count property, or rather the lack thereof. Currently the code shows the joint count by using code like "array.length()" and setting the array length, but not actually setting a dedicated variable. Changing this to a dedicated variable that is used only for the joint length seems to fix the issue, even when rebuilding the project.
I will push a new version next weekend (June 19th or June 20th) with the fixes, as well as some new additions :D