Status
Works as designed
Issue description
Can I change my skin?Mcreator isn't bound to ANY minecraft accounts,so I can't change this way.
Issue comments
Java edition uses MC client by Forge that is deobfed offline client and does not work with online mode.
Bedrock edition does not offer this so yes, you SHOULD buy MC to test bedrock.
https://tldrlegal.com/license/minecraftforge-license#fulltext
In test environment, you are user "Dev". This is offline kind of client not not meant for actual use.