I installed the beta 4.0.0-b2 by downloading the distribution from Github. Ran the install on Debian 10 and running it. The dashboard miss Morpheus images. The dashboard I am checking is automatically updated to 4.0.0-b3.
indeed the icons are not in this location. I checked in the zip file I downloaded and there are not present. Now I see that
icons is a symlink to another project which might explain this absence of files.
We are managing some stuff in submodules, like some plugins, libraries and the icons. When downloading the github release they won't be included. Please use the releases published on https://builds.matomo.org/
Thanks for this link, I confess I looked for it without success. You may consider adding this link with new beta announces.