Fable + subagent swarm is a "farce" (fable's own words)

This one made me laugh. First Fable prompt. I've been saving up for something tricky and deep, so asked it my question, and it fired off 4 sub-agents. Then I noticed the number of subagents growing and growing, peaking at 70 (!!). "Fable is different!" I tell myself. "Look how thorough Fable is!" I tell myself. Then fable stops and says:

This used 50% of my 5hour limit. I retried my query and directed fable to direct any subagents not to use subagents, and it is working fine, so no real harm done. I tried to find a way to disable sub-sub-agents in the desktop app settings, but didn't see it.