How to fix (AWS SSO) Test Connection failed

QQ
New Contributor III

What did I configure incorrectly? About SSO settings in my Databricks account. 
What troubleshooting should I do? I don't see any error message.

I follow step instruction from AWS View step-by-step instructions. link below
View step-by-step instructions.(From My AWS account) 
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Image.1 Databricks SSO configure my account 
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Image.2 AWS SSO configure (My account is AdministratorAccess)
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Image.3 Attribute mapping for Databricks
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Image.4 SAML tracer 

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Thanks you.