Use the same TLauncher account
Upload the skin and sign in inside the launcher with the same account. A different account will not use that uploaded skin.
Troubleshooting
If your TLauncher skin is not showing, start with the account, version, restart, and PNG checks below. These steps cover the most common setup problems before you try a new skin.
Upload the skin and sign in inside the launcher with the same account. A different account will not use that uploaded skin.
TLauncher skins depend on versions marked with the TL icon. If you start a version without that icon, the skin may stay as Steve or Alex.
Close Minecraft and restart TLauncher after uploading or changing a skin. The launcher may need a fresh session before the skin appears.
Use a standard Minecraft skin PNG, usually 64x32 or 64x64. Files with the wrong format can fail to load or preview incorrectly.
The usual causes are a different account, a Minecraft version without the TL icon, no restart after upload, or a skin PNG that does not match the expected format.
TLauncher skin visibility can depend on the launcher version, server, account state, and whether other players are using a compatible setup.
Shaders normally change lighting and visuals, not the account skin itself. If the skin disappears only with a shader setup, test again with shaders disabled to isolate the cause.
TLauncher describes HD skins as a Premium feature. If you are using a standard account flow, start with a normal 64x32 or 64x64 PNG first.
This is an independent troubleshooting guide, not affiliated with or endorsed by Mojang or TLauncher. Minecraft and TLauncher are trademarks of their respective owners.