[BUG] v2.0.68 does not display MCP interaction in subagent even with --debug and/or --verbose

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The literally happened while testing my subagent and the auto-update happened.

Final answer seems to correlate, but much weirdness.

Funny enough, it does print out stuff I kinda expected earlier, but it contains a lot of blank lines...

Example

   Don't go overboard with loop unrolling. Focus on meaningful optimizations like:
     - Using fixnum operations ($fx*, $fx-, fx<=?) where safe
     - Tail-call optimization with accumulator
     - Type annotations if helpful

     Show the decompiled IL/code and benchmark results for each iteration so we can see the progression.
  ⎿  Response:
       I'll work through this systematically. Let me start by importing the necessary libraries and then proceed with each step.



       (import (ironscheme clr) (ironscheme typed) (bench))






       ;; ITERATION 1: Baseline factorial
       (define (fact n)
         (if (<= n 1) 1 (* n (fact (- n 1)))))

       ;; Show decompiled code
       (disassemble fact)






       ;; Benchmark iteration 1
       (bench (fact 12) 500.0)






       ;; ITERATION 2: Fixnum operations + tail recursion with accumulator
       (define (fact-opt1 n)
         (define (loop n acc)
           (if (fx<=? n 1)
               acc
               (loop (fx- n 1) (fx* acc n))))
         (loop n 1))

       ;; Show decompiled code
       (disassemble fact-opt1)

This is all output I never got before, and everything else I got before is now missing (or blank?)

What Should Happen?

Print out everything like before

Error Messages/Logs

Steps to Reproduce

No, the claude auto update process even cleared the console buffer, so I have really nothing....

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.68

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_