When editing or creating a work item for Azure DevOps Board, you can use “@” character to mention specific users. For some of my group members (Basic level), typing “@” doesn’t present any usernames. According to Basic level access, only limitation published is access to Azure DevOps Test Plans. We’re not trying to use Test Plans but merely editing/creating work item in Board and mentioning users. Does anyone know how to fix this? See screenshot below to see the issue

We tried changing access level from Basic to Visual Studio but that did not work as the user does not have visual studio subscription. Basic access does not limit use of Azure DevOps Board so not sure what is wrong here.