Can you add a way in the config for Spawners not to be moveable. The only way for us to fix it on our end would be to pretty much remove most of the mod mechanics.

A solution to this would make cart assemblers and other entity contraptions respect the forge:relocation_not_supported and forge:immovable tags. (they currently do not, tested using flux plugs which have forge:relocation_not_supported)

This would also allow modpack creators/server owners to add blocks to those lists

there is already a place in the config to make specific blocks immoveable or have them break when you try to move them

The above request actually seems valid to me; if there are mods already making use of an existing Forge tag that prevents relocation, should Create not respect that tag as well? Not necessarily a "bug", but the potential for many mods to conflict or break with the contraptions.

I do agree, contraptions should respect those tags, I simply was providing a solution to the problem that didn't involve waiting for Create to possibly change it sometime in the future.

there is already a place in the config to make specific blocks immoveable or have them break when you try to move them

I do not see a place where you can configure blocks to be immoveable in either the common's config or the server config.

If you could elaborate where you can find the option at that would be helpful.