Hello Dear Mojang Developers, there is a problem with the Minecraft game in the skin that cannot be changed and the marketplace that does not respond to display.
Related issues
Comments


on android devices, in offline mode the skin cannot be changed

We are tracking skins not being able to be used while offline at MCPE-89591. Not being able to use the Marketplace while offline is not a bug.
What device are you experiencing this issue on?