"3 active engraving effects will be decided randomly"

what does that mean? active engravings are those with 5 points? but i receive loot with engravings which have at least 1 used book but are not active. impossible to get something usefull for my class.

is this a bug? with my first char i ONLY had usefull jewelry because the only books i read was those for my class (igniter +1/2 on pretty much all jewelry).

It rolls 2 positive and, if it’s epic or higher, one negative engraving effect.
The + is determined by item level.