How can I ensure that an animation loads for all players?

Happy new year! I'm sort of late for this, lol.

Anyways, my brother and I are creating a roleplaying game, in which it includes animations of tools and role-play animations. It works completely fine in my studio testing, but for my brother, it's not loading. It just keeps saying in the output:

11:43:51.888 - Animation "https://assetdelivery.roblox.com/v1/asset?id=4559586806&serverplaceid=0" failed to load in

Is this some sort of glitch in ROBLOX studio? or is it just me, who's missing something?

Feel free to tell me below in comments or answers, I honestly don't care.