Hi @Zac_Magee 
Sorry to hear you’re running into this.
I can see you also posted in this thread: Airtable Oauth2 credential setup failing (due to PKCE error with "code_verifier")
Unfortunately, it looks like Airtable is rejecting a character that would usually be supported by this field. Retrying the connection generates a new code_verifier, which would be the only workaround at the moment.
This is something our engineering team has their eyes on (as mentioned by Jon in the other thread), and hopefully we’ll have a fix out for this soon. I’ll be back with any updates or additional workarounds as soon as I know of them.