Hello guys.
I am trying to use Collector. Current Selection with boolean and I have no idea why it is not working.
Can you help me? 
try opening custom node, and copy it to your graph, connect boolean to correct input. Then tell us what the error message says.
TY 
2 Likes
_Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed.
Traceback (most recent call last):
File “”, line 23, in
AttributeError: ‘Selection’ object has no attribute ‘Elements’
_Warning: Method ‘element()’ not found
P.S. Can it be related to Revit 2020.1 update ?
I am curious about that because it was working before update.