Hello,
I'd like to help you - a few more details will help:
1. which version of LabVIEW are you using?
2. what is the precise name of the property you are setting?
If you can, attach a simple piece of code with a screenshot showing the property selection/assignment.
We should be able to determine if you're missing something, or if you're observing behavior as it's intended.
Best Regards,
JLS