Images always show [Unsupported Image] on Claude Desktop (Windows)

Status Open
Reported on v2.1.260
Maintainer reply None cached
Activity 2 comments · opened Sep 11, 2026

Since I installed Claude Desktop on Windows, every image I send shows [Unsupported Image] and the assistant cannot see it. The files are valid PNG/JPG and open fine locally. It has never worked. Text chat works normally.

The workspace also fails to start: "Failed to start Claude's workspace - RPC error -1: SDK version 2.1.260 not verified". I know about the known Windows update issue from Sept 8, but the image problem existed before that.

App version:
Windows version:

View original on GitHub ↗

This issue has 2 comments on GitHub. Read the full discussion on GitHub ↗