Filtering the list does not work

Revit
1

hello I have a list of views (185) and another list of view (23) from that 185 list.

I’m trying to take out those 23 views from the original list and get the remaining list.

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This is what I tried but didn’t work.
Any help?

Thank you!

2

You’re missing the mask input. FilterByBoolMask filters a list based on boolean inputs. Use SetDifference instead. It should do exactly what you want.

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