Hi, as you observed, we are now returning the default skin from the API. We can confirm there was an issue in the algorithm deciding the default skin. A fix for this has been deployed since yesterday, 2020-11-05 around 16:00 UTC and the default skins returned by the API are now expected to correspond to the same default skin determined by the Java HashCode of UUID.
[Mojang] Jakob Horndahl
Hi, as you observed, we are now returning the default skin from the API. We can confirm there was an issue in the algorithm deciding the default skin. A fix for this has been deployed since yesterday, 2020-11-05 around 16:00 UTC and the default skins returned by the API are now expected to correspond to the same default skin determined by the Java HashCode of UUID.