Bug type

Regression (worked before, now fails)

Summary

updated to opencalw 2026.3.2 and now openrouter gives the message 401 missing authentication header- Before it didn't. Tried also a fresh install. Nothing.
Api key is correct.

Steps to reproduce

Install and put openrouter api key.
Model i chosen is stepfun/step3.5flash:free

Expected behavior

To work normally: Chat should work

Actual behavior

Chat returns 401 missing authentication header

OpenClaw version

2026.3.2

Operating system

ubuntu 25 (VM)

Install method

npm

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response