Comparing stats and stats6, I discover two of my WCG badges on stats6 are off -Open Pandemics-COVID-19 shows as sapphire badge while it should be a 5 year diamond and Africa Rainfall Project shows a silver badge while it should be ruby. Both are showing right in the production environment.

The badge shown at both stats and stats6 on 'Subproject credits/Usersubprojects Stats' is not the badge shown in my signature and 'Badges (test)/Badges stats'. The latter is the right one, that shows your credit level.

At both stats and stats6 the view 'Badges (test)/Badges stats' three kind of badges are shown: Total credit level badges, sub-project badges and RAC badges.
As the last category mostly shows the exact same badges for each project having them and are just temporary they might as well be left out, according to me.
For the other two categories the same amount of credit is displayed for all badges belonging to one project. This is strange, because there are columns 'next badge' and 'credit needed' which are meaningless when you give the same credit for each entry, while the correct level is available at FreeDC and shown at 'Subproject credits/Usersubprojects Stats'.
The 'credit needed' column has green 'v' images on stats6 and missing images on stat where a numeric value should be [Two values showing right though on stats6: Rakesearch total credit and MM badge]. 'Next badge' should have those images, but has no entries of any kind.