Elevation error

[Lê_Gia_Huy]

Hi, I’m trying to make level in Revit through Grasshoper but it always crashes into this error “1. Invalid cast: ProjectElevation » Nullable`1”. If you guys have met this before, I’d be much thankful to receive some advice. I’m using Revit 2024. Thanks in advance.
TestLevel.gh (9.4 KB)

[Japhy]

Le Gia Huy, Thanks for reporting. Please update to the latest RC (1.13) or above

[Lê_Gia_Huy]

Thanks !!!