With torch and the way clients update the meta data for voxels, you need to wipe your content folder for mods located here. C:\Users\YourUserName\YourTorchFolder\Instance\content
Delete the 244850 folder entirely, the torch server will redownload all the mods again when it reboots, or when you restart it manually. This gets you the newest textures from the mod, that may not have updated before. It can also help at times with any other mod bugs you are experiencing, since it pulls all of the newest files. :)

Clients playing offline or on your server need to go to "C:\Program Files (x86)\Steam\steamapps\workshop\content\244850\2943852680" and delete this folder, when the game is closed. Then relog onto server.