Steps to reproduce (attempting to import custom skin):

1. With Minecraft open, open a world with multiplayer enabled or join any multiplayer world / server
2. Open the pause menu
3. Go to Dressing Room
4. Click on the skin above "Owned Skin", usually it's an example skin if you are on PC (Windows) or mobile (Android and iOS).

Observed result:
If you experience MCPE-181194, you cannot import custom skins to the game while on a multiplayer-enabled world / multiplayer server with a message. There's no information regarding why it was set-up that way.

Expected result:
You can then import the skin even on multiplayer (while on last good Dressing Room UI)

Workaround:
Follow the instruction from the game. Save and quit, Return to the main menu, then go to Dressing Room and you can import it again.

Original description:
Up until a few days ago, I was able to change my custom skins in “The Hive” server. Something happened and now it won’t allow me to change my custom skins in a public server due to it saying, “Your device cannot select a custom skin while in a multiplayer game. Please return to the main menu to equip one.” even though I was able to change my skin in the server on the same device the day prior to the bug. It also has a “Restore” button clipping through the store in the available skin packs in the customize skins section. I’m not sure what happened, mostly since I was completely able to change from one custom skin to another while in “The Hive” a few days earlier. I tried deleting Minecraft and reinstalling it, but that didn’t do anything to fix the bug.