What I expected to happen was...:
Getting from one of the 6 ores i mined a higher drop due to fortune 2

What actually happened was...:
every ore dropped the normal 1 resource

Steps to Reproduce:
1. Enchant iron pickaxe at lvl 20 for frotune 2
2. Mine ore
3. be dissapointed

i think the issue is optifine, i tried it out without optifine and it worked