Hey @Danial_Khan,
This isn’t anything on your end, and it’s an issue we’re tracking with Opus 5.5 over your own AWS Bedrock connection. Two ways to keep moving:
- Start a new chat (as you found). That’s the reliable reset; restoring a checkpoint or forking won’t clear it.
- To rescue a stuck chat without losing it, switch it to an earlier Claude model (Opus 5 or 4.6), which doesn’t run this check. If that still errors, reply here and I’ll look at your specific requests.
Same issue we’re already following here: Opus 5.5 chats die permanently after long agentic turns. I’ll post back when there’s an update.