Re-assignment task appian

Hello people!!

I'm attempting to reassign a task to another user, but I'm encountering an issue in the production environment. The user list for reassignment is appearing empty, which is preventing me from completing the task.

Does anyone know what's going on? I have a group called USERS that includes all the application's users. In the development and testing environments, everything works fine, but in the production environment, the user list is coming up empty.

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