Custom skin with alternos using forge as software

[Bakinagi]

Hello, I was doing some research however i didn't find the answer for this issue. I have a server on alternos with forge to use mods, when i connect to the server my skin is the default Steve skin, if i play offline on my own game, i can see the skin, do i need to add a mod on my server so my skin is showed? Tnx

[ChampionAsh5357]

Ask alternos support. This is probably an issue with them.