a!agentChatField not rendering/connecting to Chat Agent — need help

I have configured a Chat Agent named "Roster Assistant" using a!agentChatField with the following setup:

• The agent is connected to our Roster Record Type as a tool.
• Field-level instructions have been configured within the record type.
• Agent goals and instructions are designed to:
  • Respond to greetings such as "Hi" or "Hello".
  • Retrieve and return roster information for users.

Problem

The agent does not respond as expected. Regardless of the message sent—including simple greetings like "Hi"—the chat either takes an unusually long time to process the request or eventually returns an error.

Additionally, when reviewing the execution in the Monitor tab, the agent run remains in a "Processing" state for an extended period before ultimately failing with an error.

As a result, the agent is unable to provide responses for even basic interactions, making it difficult to determine whether the issue is related to the agent configuration, record type tool setup, or underlying processing behavior.