Thank you for the assistance.
Please find two zips related to both the errors with the default (1922) and 1082 vertex values.
https://drive.google.com/drive/folders/1QZD3Go11yws8enoTCPeC_9d-y06TP8T0?usp=sharing
I've been using Brainstorm for a while with my personal Mac, and never ran across this error. If this ends up not being related to BST or OpenMEEG, could be it some sort of security/account permissions issue due to this being run on a virtual machine hosted by my institute?