Steps to reproduce:

1. install com.unity.behavior package (1.0.14 or below)
2. create a blackboard asset with a GameObject variable named "Target"  
3. create a behavior graph asset and link the previously created blackboard asset
4. right click in the graph and add a new "Navigate to Target" node

Actual results: 

The "Target" field on the node is not set with the appropriate variable (same name and type) from the linked blackboard asset.

Expected results: 

The "Target" field on the node is set with the variable from the linked blackboard variable. Doing the same steps but creating the variable in the graph embedded blackboard instead does work as expected.

Reproducible with versions: 1.0.0 up to 1.0.14

Not reproducible with versions: none

Can’t test with versions: 

Tested on (OS): Win

Notes: