The property "treeAnimation" is missing in GanttPropsAndEvents class.
This should be fixed now in the latest sandbox build (2021.4.5152). Thanks for reporting the issue!
Thanks for the quick fix!
Any reason why my pro license npm package can't find that version?
does npm just need a second to update?
The sandbox versions are only available as a trial.
The next full release will be available on December 1:
That's good to know!
Have a nice day.