Delay in response generation after the tool output

[vbang-vwo]

I am working on a single agent chat bot that is equipped with some custom tools. I have given the bot instructions to only run one tool per execution/call/crew run.
When a crew is run, the agent calls the required tool and the tool gives its output. Even after 5-7 minutes of the tool output, the final response of the agent is not generated, and later it hits its max_iter.

Can someone please give insights as to what may be causing this? (Let me know if more clarification is needed)
Crew version:
crewai==0.55.2
crewai-tools==0.12.1