Anyone else having issues creating new HubSpot sources with OAuth credentials ? Doesn't work since 6.2.1 (yesterday)
Encountered an error while discovering streams. Error: 400 Client Error: Bad Request for url: <https://api.hubapi.com/oauth/v1/tokenError>
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Henry Mattingly
02/18/2026, 9:47 PM
Hey, thanks for flagging this! I wasn't able to find a bug report for 6.2.1 specifically.
A couple of things worth trying in the meantime:
Roll back to 6.2.0 if you can, to confirm whether it's definitely tied to the 6.2.1 update
• Try using a Private App access token instead of OAuth as a temporary workaround while this gets investigated
• Open a GitHub issue if one doesn't exist yet: https://github.com/airbytehq/airbyte/issues
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Hadrien Lepousé
02/19/2026, 8:46 PM
Turns out the problem is not new, my bad.
HubSpot connector badly handles the properties flagged as sensitive, so it's just unusable
I raised a ticket with cloud support (im a cloud user)