Unusual Expression Stack Overflow Error - Enterprise

I’m trying to help resolve an unusual error in which one user gets an Expression Stack Overflow when opening a specific shared database.

In their office, each user signs on to the server via their User account before they begin sharing. The error does not occur for any other user and occurs for this one user even on other user’s computers. It’s clearly related to the User Account through Users & Groups on the server but I’m at a total loss to understand it.

It happened some weeks ago and was resolved by creating a new user account on the server. Now it’s happening again.

It doesn’t strike me as a Panorama issue but I’m hoping there may be some ideas here.