The whites ONE containers (watch the picture) are not on the containers freights formations since tuesday update.
This is not a bug. White one should be freezer container which should have different model. Maybe later we get White One Freezer, technical base is there form SMH where 40ft and 53ft can coexist.
Following the opening of a ticket at DTG support, I just had their confirmation that it's a bug under the reference : Nahverkehr Dresden - It has been noted that the white "ONE" containers no longer appear in services. To be continued...