Bug Report: Session Hang on Long Conversations (Cache/Context Management Issue)
Reporter: Community Tester
Platform: lmarena.ai / lmarena.direct
Model affected: claude-sonnet-4-6 (primarily), others affected intermittently
Date: April 2026
Browser: Chrome 147
OS: Windows 10
Summary
When continuing a long conversation session (20+ exchanges), the model enters an infinite "Generating..." state and never returns a response. This appears to be related to improper cache/context management on the frontend side.
Steps to Reproduce
Open lmarena.direct or lmarena.ai
Select claude-sonnet-4-6 in Direct Chat mode
Send 25-35 messages in the same session (complex prompts with context)
On one of the subsequent messages, the model shows "Generating..." indefinitely
Page refresh restores the session but immediately resumes "Generating..." state (stuck)
Bug Report: Session Hang on Long Conversations (Cache/Context Management Issue)
Reporter: Community Tester
Platform: lmarena.ai / lmarena.direct
Model affected: claude-sonnet-4-6 (primarily), others affected intermittently
Date: April 2026
Browser: Chrome 147
OS: Windows 10
Summary
When continuing a long conversation session (20+ exchanges), the model enters an infinite "Generating..." state and never returns a response. This appears to be related to improper cache/context management on the frontend side.
Steps to Reproduce
Open lmarena.direct or lmarena.ai
Select claude-sonnet-4-6 in Direct Chat mode
Send 25-35 messages in the same session (complex prompts with context)
On one of the subsequent messages, the model shows "Generating..." indefinitely
Page refresh restores the session but immediately resumes "Generating..." state (stuck)