This is correct that the property has been assigned a value through a singleton.
The unity environment it doen't report an error at the console and and durning the project build time.
All behavior tree (.asset file) that had this faulty task stopped displaying the content.
Hi,
I noticed that some of my behaviors in the asset tree do not display buttons and the entire tree.
I tried to revert to an older version of the .asset file but the problem still exist.
My .asset file is in the attachment.
I will be very thankful for any help in this matter
Best...