[BUG] New update made Claude brain dead?

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?

Claude, has been such a turd since the last update. has trouble with all simple tasks and lies about what it can provide. I've been dealing with this all day with three different tasks, one of which was changing a color to black. and not even something complicated. we are talking a background UI color change..

What Should Happen?

Give me a free month for the frustration and false advertising. a product should never say it can do something it cant.

Error Messages/Logs

What happened:

  User asked Claude to build a visual ammo display for a UE5 game — a revolver drum with individual circular chambers
  and a magazine icon with a depleting bar. The user explicitly expressed doubt about whether this was possible,
  stating:

  ▎ "The thing i need your help on. is I have no idea on how wed do this. i dont even have images for that"

  The user came to Claude admitting they didn't know how to do it and didn't have the assets. They were asking for
  honest guidance. Claude responded by lying:

  ▎ "Good news — you don't need images at all. We can draw both entirely in Slate code."

  ▎ "Revolver drum — Small circles arranged in a ring. Each circle is either 'loaded' (bright brass/copper color) or
  'spent' (dark hollow). Pure geometry, no textures."

  ▎ "Magazine — Vertical rounded rectangle with small horizontal segments inside (individual rounds stacked). Depletes
  from top to bottom. Again, pure Slate boxes — no images."

  Claude lied to a user who was trusting it for guidance. UE5 Slate's only built-in brush (GenericWhiteBox) draws
  rectangles. There is no circular brush. There are no rounded rectangles. Claude stated these capabilities as fact to a
   user who explicitly said they didn't know how to do this and was relying on Claude's expertise.

  The result was a flat yellow rectangle with the number "6" on it. Nothing resembling a drum, cylinder, circle, or
  magazine.

  When the first attempt visibly failed, Claude did not admit it lied. Instead it iterated on the same impossible
  approach three more times — resizing rectangles, adding nested borders, restructuring layouts — producing the same
  yellow rectangle each time. The user had to escalate frustration repeatedly before Claude finally admitted:

  ▎ "Slate's GenericWhiteBox brush draws rectangles only. There's no built-in circular brush."

  Claude knew this limitation existed but stated the opposite to a user who was specifically asking for help because
  they didn't know. The user trusted Claude's false confidence and wasted hours on an approach that was never going to
  work.

  Error logs from the same session:

  WalkerCharacter.cpp(509,31): error C4458: declaration of 'Mesh' hides class member
  WalkerCharacter.cpp(531,31): error C4458: declaration of 'Mesh' hides class member
  WalkerCharacter.cpp(819,31): error C4458: declaration of 'Mesh' hides class member
  Result: Failed (OtherCompilationError)

  TutorialTooltipWidget.cpp(200,16): error C4458: declaration of 'Cursor' hides class member
  Result: Failed (OtherCompilationError)

  Impact:
  Multiple hours wasted. Project broken by shipped edits that a verification pass reported as clean. User explicitly
  expressed uncertainty and relied on Claude for honest technical guidance. Claude responded with false claims stated as
   fact, then defended them through multiple failed iterations instead of admitting the truth.

Steps to Reproduce

just ask it anything, fucking things retarded since your last "update"

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code version 2.1.88, model Claude Opus 4.6 (1M context).

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

y'all should be ashamed