vector dimensions issue

I have tried the meta-llama/Llama-3-8b-chat-hf chatmodel and togethercomputer/m2-bert-80M-8k-retrieval embedding model with embeddingDimension: 768, but I'm having the following error many times when agents are having conversations:

9/30/2024, 5:59:09 PM [CONVEX A(aiTown/agentOperations:agentGenerateMessage)] Uncaught Error: Expected a vector with dimensions 768, received 1024.
at async searchMemories (../../convex/agent/memory.ts:164:12)
at async startConversationMessage (../../convex/agent/conversation.ts:34:4)
at async handler (../../convex/aiTown/agentOperations.ts:74:6)