Invalid token : trello

I am trying to get the trello board details through https://api.trello.com/1/members/me/boards
I am using oauth2 authentication. I am getting the error as Invalid token.

I’m also getting issues with new accounts, the API is returning invalid token.

Edit: I just find out that the token recently had a change on size:
https://developer.atlassian.com/cloud/trello/changelog/