OAuth refresh token errors

API Endpoint(s) and/or Zoom API Event(s)
https://zoom.us/oauth/token

Description
Good morning!

Today (8/30/2024) we received OAuth refresh token errors for several users that use our App.

Until yesterday (8/29/2024) they were working normally, Detail: we have 8 token first retrieved on May 2024 or before, and one on 08/02/2024 that works perfectly.

Furthermore, our app refreshes all tokens in a daily basis to guarantee that them are not expired.

Could you help me solve this problem?

Error?
Invalid token

How To Reproduce

1. Request URL / Headers
URL
https://zoom.us/oauth/token

Header:
Authorization: Basic {base64(clientId:clientSecret)}

Body:
grant_type: refresh_token

2. Authentication method or app type
Api Key

3. Errors

{
    "reason": "Invalid Token!",
    "error": "invalid_grant"
}

@app-niuco is the app uninstalled by the user?

No, they continue using the app.

The problem is this invalid token. It was working normally yesterday.

Can you ask the users to reinstall the app? This could have possibly happened because the latest value of the refresh token wasnt saved.