I can't change my classic skins (PNG) offline

Hello, I introduce myself and I would like to report a small detail that has been around for several versions of Minecraft, as it turns out that it no longer allows you to change custom skins (PNG Skins) while playing offline, even outside the menu, it seems that there is necessarily You have to be connected to the internet to change a skin that I have already saved on my device and that is just a matter of selecting and that's it. You will have your reasons for having placed this malfunction, but it would be good if it returned to how it was before, that one could simply go to "Edit character" and be able to select one from the gallery as it used to be. I emphasize that it can be done, but as I see it is only and exclusively with an internet connection while before it was possible without a connection. It's something that ruins the game experience a little for me, since I have my own skin packs that I made and I can't select any of those skins because I don't have an internet connection.