hi, I upgraded today from 3d Slicer v 5.8 to 5.12 (latest stable version), because I had been experiencing the same issue already with v 5.8. When I launch Extension Manager it cannot download the files for updates. The python console shows this:
[Qt] An OpenGL Core Profile was requested, but it is not supported on the current platform. Falling back to a non-Core profile. Note that this might cause rendering issues.
[Qt] A cookie associated with a cross-site resource at http://www.nitrc.org/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at Chrome Platform Status and Chrome Platform Status .
[Qt] Failed downloading: https://slicer-packages.kitware.com/api/v1/file/6a709511e5707846f0878d73/download
On top of that, it will only get to the Extension Manager if it does not freeze upon start up. I am running this version from a Win 11, Intel Core Ultra 7 255HX (2.40 GHz), w 64 GB RAM HP laptop.
Still a newbie on this, so any help is appreciated. When I first installed v 5.8, the extension manager worked seamlessly on this same laptop. Can it be something in my network? BTW this happens on two different Win 11 PCs.