Thank you for your patience! I just pushed a fix to the BRAILS backend that addresses this issue.
I plan to make a few other BRAILS improvements before the end of this week, so this fix may not make it to a minor release until early next week. If you would prefer not to wait until the minor release is out, please use the following syntax to update your BRAILS from the GitHub master: pip install git+https://github.com/NHERI-SimCenter/BRAILS
Once the minor release is out, you can use pip install BRAILS or pip install BRAILS -U as usual to install the latest fixes/improvements.
I hope this helps!