Whenever I try and place any of them it says "Rolling Stock does not exist on the server. Can not place. Ensure you have the resource pack in the server's config/immersiverailroading folder. I have seen others ask this question but the answers were "put the resource packs in the config folder". I am not sure what resource packs I am meant to be moving so could someone please explain it to mean in more depth? Thanks.

latest.log
https://pastebin.com/bXGmnFqr

I am using the Voxel Trains IR Pack, which is the trains that don't work are from.

It's not a bug, the pack must be on the server end as well.

If you are still having trouble, come ask for help in the IR discord.