Oauth2 access_token stopped working

I have created a private oauth app for pagerduty using new oauth2 authentication using this docs
[https://developer.pagerduty.com/docs/app-integration-development/oauth-2-functionality/](http://doc link)

Suddenly yesterday all my old access_tokens expired and I couldn’t use it anymore.API started throwing 401 status code. so I had to create a new access_token. Are there any limitations in the oauth2 app if it’s not published. https://developer.pagerduty.com/docs/app-integration-development/publish-your-app/ (doc link for publishing app)

how did my old tokens stop working and I didn’t revoke tokens from oauth app.

Hello,

Thanks for your message and for reaching out on the community page. This will need some further details like specific services ect… and as our community page is public, can you please resubmit the request to our support desk on support@pagerduty.com, with links to a Service that had its extension removed.

Once I have this I can take a closer look.

John