Viewport.LocationData error

Hi all,

I am using Viewport.LocationData by Rhythm. I had it working > saved > closed script > opened script > run > and now I am getting this error. I changed nothing in Revit or dynamo just closed and reopened. Does anyone have an Idea on what might be going on?

Revit:
18.3.1.2
20180423_1000(x64)
2018.3.1
Dynamo: 2.0.2.6826
Rhythm: 2019.1.21

Thanks for any help you can provide,

Warning: Internal error, please report: Dereferencing a non-pointer.
Internal error, please report: Dereferencing a non-pointer.
Internal error, please report: Dereferencing a non-pointer.
Viewport.LocationData operation failed.
Unable to create block : NO_CUR_BB – no current bulletin board exists

I closed Revit and reopened and it seems to be working now. I will report back if that changes.