I am trying to enable experimental features on the latest snapshot via the Server (not client)

In the server.properties file, I have set the values: initial-enabled-packs=vanilla,bundle,redstone_experiments,minecart_improvements,trade_rebalance

When I start the server on a new world, I get the following errors:

[06:08:14] [ServerMain/WARN]: Missing data pack Bundles
[06:08:14] [ServerMain/WARN]: Missing data pack Redstone Experiments
[06:08:14] [ServerMain/WARN]: Missing data pack Minecart Improvements
[06:08:14] [ServerMain/WARN]: Missing data pack Villager Trade Rebalance

However, when upload an existing world from a single player which already has the above enabled, then it works on the server.

I looked into the single player world to see if there are any datapacks that I can copy and I can't find anything

Is the only way to enable experimental datapacks on the server is to first create on client and then copy to server? Or is this a bug?