Is Pro unable to finish a Fable ultracode session?

I am trying to use ultracode to analyze my codebase and generate a comprehensive improvement report. The plan was to use the generated report to knock out tasks one by one.

My issue is that I cannot get an ultracode session to actually finish. It creates 20 agents with 6 running concurrently and I hit my pro rate limit after only 2 or 3 agents "finish" their tasks.

I have two accounts on the pro plan and tried switching between them, but that doesn't work. When I ask Claude to "continue" where it left off, it just reruns every single agent from the beginning, which burns through my limits again with a 2/20 progress.

Can I improve my workflow? Or is the Pro plan simply not suitable for ultracode?