I have killed hundreds of bugs with my Larva Lance and yet I have not unlocked Javalineer

I killed 40 - 50 bugs with my Bow and still have not unlocked Bow

I have killed 0 bugs with daggers yet I am already level 1 daggers

I don't even have a spider and I have already unlocked 2 levels of Spider charge while only having an Ant

Mutations as of current patch on August 17th seem extremely broken.

Update on bug

The mutations still keep track but do not become available until tier 3 is completed

So it stays in an unrevealed state until you kill enough that it unlocks at level 3 completion.

Still not idea of the cause.

Update 3

Even though it says tier 3 unlocked it does not show the mutation appearing to be selected

This is getting really frustrating I can't pick any mutations please release a hotfix which refreshes mutations