Blueprint Data Loss with Certain Variable Names

Certain characters within blueprint variables names will cause data loss when duplicating an actor instance. For example if a variable name contains '(', '{', or '[' it doesn't retain the variable's state when duplicated.

1. In the content browser create a new blueprint class with an Actor parent class
2. Open the blueprint and add a new variable (of any type), I'm using a bool in this case
3. Name the variable: temp(
4. Mark the variable as "Instance Editable"
5. Compile, save, and close the blueprint
6. Drag and drop the blueprint actor into a level
7. Check temp( to true on the blueprint actor
8. Alt + drag (or copy + paste) the blueprint actor to make a duplicate instance
9. Note, the value of temp( on the new instance is false