creative_object has a comment on GetTransform that says:
# Returns the transform of the `creative_object` with units in cm. You must check `creative_object.IsValid` before calling this if there is a possibility the object has been disposed or destroyed by gameplay.
# Otherwise a runtime error will result.
There is no IsValid function on the creative_object.
@fabtjar Thank you for your report! Can you please re-post using the “New Issue” option on the Issues and Bug Reporting forums? Posts with this feature are connected directly into our development team so we can quickly get to them!
For more information, such as how to get the reference ID, please check out the article here: Using the Creative and UEFN Bug Reporting Form