Packaged Game cannot resolve List of Pure BP Structs

[error454]

UE4 Version
4.24.3

SkookumScript Version
4.24.03

Describe the bug
Trying to access a list of struct defined in BP fails in a packaged game.

To Reproduce
Steps to reproduce the behavior:

1. Create a struct in BP
2. Add a List of this struct to a BP
3. Try to access the (add/remove) from the list in sk

Replacing the struct with a C++ struct works.

Expected behavior
BP based lists of structs can be modified in sk.