The Driver Tree is sometimes showing larger numbers that aren't properly formatted for visualization. If you adjust the scale size in the inspector, other small numbers may not be seen, as they are rounded to 0. Here is an example:
The solution is to adjust the settings in the nodes. Click on "Show Advanced Settings" and set the "Default Scale":
If you adjust the advanced settings in the desired nodes, the tree will be shown as follows:
Please note, these errors can depend on your browser setup.
If this problem persists, please contact our support.