Access Denied using DetectDocumentTextAsync in C#

Question

I've read other posts regarding access denied errors, and either they are mysteriously marked answered or the user is instructed to use another region.  
I have already verified that the iam user has the AmazonTextractFullAccess policy attached, and I've tried from both us-east-1 and eu-west-1.  I am able to use preview from console with this user without issue.  
  
The exception message is:  
ex.Message = "User: arn:aws:iam::????????????:user/???????? is not authorized to perform: textract:DetectDocumentText with an explicit deny"  
  
User details have been redacted.  
  
Any assistance would be appreciated.  
Thanks!

Answer

Following up.  After wasting someones time at AWS, we found that there is likely an explicit deny of the tesseract service on the user I was using.  While this didn't appear in the console, it did cause issues using the api from c#.  
  
Setting up a new user with only textract full access attached resolved my issue.

Access Denied using DetectDocumentTextAsync in C#

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