I am seeing the old teams on PC. I have restarted the game and checked on PC and Android.
Other players are seeing this too, see Big Boned.
My guess is that it depends on whether players had done any regular trials using the original team. I had. I presume that copies a template team into a hidden slot on the player’s profile to permit reordering.
[update: My hypothesis is incorrect, Awfuldevs provides an example that disproves it in the next post]