Handle many http requests at once

Hello,

I’m using the plugin GlTF Runtime and it’s basically used to load gltf/glb assets from a server or from an external folder.
I’ve put in place a system that loads models according to the time they should appear, and the majority of the time there are 2 or more models that must appear in the scene at the same time. When i use load gltf from folder, it works perfectly. However, when i do it from url, only one of the two models appear, do you know where the problem comes from and how can i fix it? Is it due to the fact that i’m sending multiple http requests at the same time ?
I don’t really know how the http lib works, but can it handle multiple requests at the same time?
Here’s what the function of the plugin looks like:

note: all the requests are being sent:

Thanks in advance!