Datapack quirkiness

Get in a world, make a datapack with a simple function(like saying hi), then reload and try to run that function. For me, it doesn't work.

What I have to do:

• Disable the datapack
• Re-enable the datapack

I don't know what is with this quirkiness, but it's super confusing and annoying.

Secondly, loot tables doesn't seem to work in datapack. I tested it in a snapshot previous to 1.14 and it worked fine. Until I upgraded the world to 1.14 and it completely died away. I used the /loot command to get the loot from a loot table I made, and it seems as if it doesn't work(it does work for vanilla loot tables, but not for adjusted vanilla loot tables, where you override a loot table by making another loot table with the exact same name).

 

Note: If you want the datapack, comment and I'll send the datapack that I'm complaining about.