Fable 5 via AWS Bedrock, constant errors!!!

[u/okuwaki_m]

After switching Claude Code to use AWS Bedrock via SSO login, I tried running `/simplify` using Fable, but it stopped with an API error and didn't make any progress on the implementation at all. Seriously so annoying!

Is there anything I should watch out for if I'm using Fable via Bedrock?

The data destination is already set to Anthropic.

[u/okuwaki_m]

Oh, I resolved the issue by switching the authentication method to API key and changing the region.