Hi @Ian Bruwer ,
I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to accept the answer .
Question: Testing a custom model on https://formrecognizer.appliedai.azure.com/studio produces a different response(NULLS) when called from code DocumentAnalysisClient.AnalyzeDocument using .NET SDK
Solution: Workaround is to call the REST API directly in the code. Also suggested to raise a support ticket for .NET SDK issue.
If I missed anything please let me know and I'd be happy to add it to my answer.
I hope this helps!
If you have any other questions, please let me know. Thank you again for your time and patience throughout this issue.
Please don’t forget to Accept Answer
and Yes
for "was this answer helpful" wherever the information provided helps you, this can be beneficial to other community members.