Villagers offer lower discount and limited trades

After curing a villager I was able to make trades at a reduced price (I.e. One paper for one emerald) but since the last update the same villagers have changed the "discount" and are now asking for a higer price that is only 1 or 2 items below normal trading price.

 

Also, I used to be able to made several trades per day but now they only let me trade 2 orn3 times.

 

I already made sure they all have accesible beds and working stations yet the problem persist.