Reported by @wild socket
Using the Windows app (Windows store, update Feb 13, 2026)
Ask ChatGPT Auto to generate a file ("generate a downloadable file containing ..."), and try to download it : the hover text says it tries to start the download but it never arrives.
Using the Web access (Chrome, etc.) https://chatgpt.com/, find the session you were working on with the app, the file can be downloaded.
The same behavior difference occurs whether there's a file preview available or not
Being able to download the generated files with the Windows app, not only on the web access (chrome)
Unable to download the generated file on the app, able to download it on the website only (e.g. using chrome)
ChatGPT Windows app from Microsoft Store (Update Feb. 13, 2026)