Watson Assistant - WatsonX Extension for Frankfurt

[hemaAI]

Hi,

I followed this instruction: https://github.com/watson-developer-cloud/assistant-toolkit/blob/master/integrations/extensions/starter-kits/language-model-watsonx/README.md
My goal was to setup a custom extension to a WatsonX instance in Frankfurt. I thought I only hat to change the url to direct to eu-de instead of us-south in the watsonx-openapi.json. However this is not working. It also gives no infos in the error message why its failing. The same request to eu-de works fine from my machine (postman request).