i created a skin but most of the time its not there as an option

so i created a nice skin and i saved it on the skin menu and I use it a lot but sometimes when I load into one of my worlds I notice I'm an Alexa skin so when I go to my profile to retrieve my actual skin its not there. even the steve skins are not there. it does this a lot especially when my wifi is weak or down but it also does this when I have good wifi. i also had a weird skin to prank people with and that was permanently deleted.