(LCU)Hextech Crafting Bugs

I was testing Hextech Crafting and I found the following Bugs:

Video for bugs 1-3

1. Project Loot without images;
2. You can craft without all materials;
3. You can get "free" champion mastery (6 & 7) without using essence and tokens (only works with 2 tokens and +- 400 essence).