# 2023.10.12

> **Release Date: April 2, 2025**

**Release Date: April 2, 2025**

## Sign-out mechanism

We have implemented a solution to prevent displaying **Invalid Grant** errors to users. If you see the **Assistant sign out** prompt, your credentials have expired. You are signed out of Assistant and need to sign in again to refresh the authentication token.

![Sign-out mechanism in Assistant](https://dev-assets.cms.uipath.com/assets/images/assistant/assistant-sign-out-mechanism-in-assistant-544268-5aba39ba-1971e169.webp)

## Bug fixes

Uncaught exceptions prevented Apps from loading in Assistant and triggered the error message: "Apps has encountered a problem. Please try refreshing the list or contact your Automation Department if the problem persists." These exceptions were not logged, making it difficult to identify the root cause. They are now properly tracked in internal logs.