Word Copilot attachments fail with NoTokenObtained
Word Copilot cannot read local or cloud attachments with my Microsoft account. Cloud file attachment opens OneDrive Picker but fails with NoTokenObtained, timeout, or “Sorry, something went wrong.” Local files are accepted but reported as empty/corrupted. The same files work correctly in Microsoft 365 Copilot Chat with the same account. The issue reproduces on different computers, different networks, new Edge profile, new Windows user, and Word for the web without Office desktop installed. Word Copilot can read the active document, so only the attachment pipeline appears broken. Correlation IDs: 49a92ea2-7068-2001-bf16-3cf7d0c388fd and b39b30a2-b012-f000-cf51-72bd844c5dea. Please escalate to Word Copilot / OneDrive File Picker / Microsoft 365 Copilot engineering.