Error obtaining ecobee account object - v2.4.1

Morning...

I just installed the 2.4.1 plug-in and I'm getting the error: Error obtaining ecobee account object.

Here whatI've tried so far:
1. When I installed the new plug-in I went ahead and obtained a new token for the account object from Ecobee - no change.
2. Downgraded - plugin worked properly. (with the new token)
3. Reinstalled the new version and obtained new token. - no change.
4. Deleted the account object and created a new one with a new token. Then updated all the Ecobee objects (thermostats and sensors) to point at the new account object - no change.

I have a debug listing where can I post it?
Let me know
Thanks
Mark

Create an issue here: https://github.com/FlyingDiver/Indigo-Ecobee-2/issues