I am struggling with this problem.
The datapack doesn't work because all the scoreboards aren't loaded by the load.mcfunction. The function works when i type /function so it's not an error in the function.
When i reload the world the load.mcfunction isn't called. 
Here the code
load.json
{"values": ["nte:reset"]}
Folder structure : minecraft/tags/function/load.json
reset.mcfunction
say installed
Folder structure : nte/function/reset.mcfunction