### Answer Based on the available sources, there shouldn't be a delay when adding a knowledge base to a node. The Node KB feature allows you to assign a specific knowledge base to a specific node in your conversation flow. [(1) ]() However, there have been reported issues where knowledge bases appear to vanish after being added to nodes. [(2) ]() If you're experiencing this: 1. Try removing the node and creating it again 2. Try adding a different knowledge base to see if the problem is with the specific KB 3. If you continue to get errors when making any changes to the agent, try exporting the agent and importing it again (not duplicating) The Node KB feature is configured in the node settings under "Knowledge Base" where you can combine topic-specific knowledge with the agent-level knowledge base. [(3) ]() If the issue persists after trying these steps, it may be a technical problem that requires further investigation.

​ To learn more, see the sources I considered: [[1] Platform Changelogs | Retell AI](https://www.retellai.com/changelog) [[2] Node Specific Knowledge Base](https://discord.com/channels/1186424376300679209/1417751347624677477) [[3] Conversation Node](https://docs.retellai.com/build/conversation-flow/conversation-node) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.