#19334 [Bug]: Calls to azure_ai FLUX-1.1-pro and FLUX.1-Kontext-pro fail after upgrade to 1.80.15
### Check for existing issues
- [x] I have searched the existing issues and checked that my issue is not a duplicate.
### What happened?
After upgrading our instance to 1.80.15-stable.1, all calls to our Azure AI Foundry deployments of FLUX-1.1-pro and FLUX.1-Kontext-pro are failing. Previous version was 1.80.11
Config: ```yaml - model_name: flux1-kontext-pro litellm_params: model: azure_ai/FLUX.1-Kontext-pro api_base: "https://company.services.ai.azure.com/" api_key: os.environ/TOKEN api_version: 2025-04-01-preview rpm: 30 additional_drop_params: ["response_format"] model_info: mode: image_generation base_model: azure_ai/FLUX.1-Kontext-pro - model_name: flux11-pro litellm_params: model: azure_ai/FLUX-1.1-pro api_base: "https://company.services.ai.azure.com/" api_key: os.environ/TOKEN api_version: 2025-04-01-preview rpm: 30 additional_drop_params: ["response_format"] model_info: mode: image_generation base_model: azure_ai/FLUX-1.1-pro - model_name: flux2-pro litellm_params: model: azure_ai/flux.2-pro api_base: "https://company.services.ai.azure.cā¦