Refresh Token logic intermittently fails

[camsoxon]

We have an integration with airtable that leverages oauth. In some cases we have been seeing intermittent failures when trying to get a refresh token for the same user, without auth edits. The refresh flow will work but then in some cases will return an `invalid_grant` error with the description `Invalid token`.

What are the reasons this might be happening, and why would it work for the same user/auth and sporadically break?

[ScottWorld]

Someone below might be able to answer your question, but I know for certain that there are Airtable oAuth app developers hanging out at the 2 forums below, and this discussion has come up before in the past, and the oAuth developers have been discussing this topic:

- TableForums 

- BuiltOnAir Slack

[camsoxon]

Hi @ScottWorld, see some oauth-related threads in those forums but nothing that helps me identify why this is happening for us!

[ScottWorld]

Try posting your question there.