Editor crashes with TypeError: Cannot read properties of undefined (reading '0') in updateHint

[fredricadell]

Environment

• Euro-Office Document Server version: 9.2.1
• Nextcloud version: latest Docker image
• ONLYOFFICE connector version: 9.2.1.37
• Deployment: Docker (x86_64 native)

Description

When opening any document (new or existing) via the Nextcloud ONLYOFFICE connector,
the editor loads but immediately crashes with the following error:

TypeError: Cannot read properties of undefined (reading '0')
at n.updateHint (app.js:8:299088)
at n.onAppReady

The document never becomes editable. The error appears in the Euro-Office docservice log at:
/var/log/onlyoffice/documentserver/docservice/out.log

Additional info

• Backend communication works correctly (all callbacks return {"error":0})
• The exact same setup with onlyoffice/documentserver works without any issues
• The bug appears to be in the frontend JavaScript editor

Steps to reproduce

1. Deploy Euro-Office Document Server via Docker
2. Connect to Nextcloud via ONLYOFFICE connector
3. Try to open any .docx file

[rikled]

Thanks! Could you try with the latest nightly?