high severityDify Knowledge Base indexing
When uploading documents to knowledge base and clicking Save & Process: documents stuck in Queuing/0%, fail with errors like \"Provider langgenius/azure_openai/azure_openai does not exist\" or 500 errors; no progress, status changes to error without verbose details (especially self-hosted Docker).
Root cause
Missing or incorrect embedding model provider configuration/credentials (e.g., Azure OpenAI), absent environment variables in self-hosted worker containers (PLUGIN_DAEMON_KEY etc.), insufficient DB connections, leading to ProviderNotInitializeError or unauthorized plugin access during document embedding step of indexing.
Difyknowledge baseindexing failureProviderNotInitializeErrorself-hostedDockerembedding modelAzure OpenAI