export meta human

Hello guys, I’m a newbies here just created a copy of my self from metahuman and imported to UE 5.4, it looks sharp!!!
but now I‘m trying to export this character export as a “glb” format for some AR stuffs but it shows some errors or warning here, the 3d viewer can not even open it,

convert to “USDZ” file by using reality converter, it looks like melting ice ■■■■ here.

so anyone knows what’s happening here or it is just the metehuman character can not exporting for a regular glb file?

Please help!