Searched for this issue, found this as the first result on Google:
data61/anonlink#224

Github Actions is listed as supported, so it was quite confusing to see "Untitled" builds in my uploads. The documentation also didn't help very much, but with the issue I linked above, I found out I was not the only one :-)

Would it be an idea to add command-line arguments to set the title, build url and whatever other info can be displayed? With that, any new CI that is not yet fully supported can rely on those until support is added.