why does opening bookshelf have highest priority?

[kzhang]

I noticed the bot is crazy once the bookshelf around it, it won't attack, won't loot, won't opening chest even much closer, it just go direct to the bookshelf, but i never seen a single legendary item dropping from bookshelf anyway, sometime it is just nothing or small amount of gold, it kind of wired to me, why you put this action is in such high priority to do, and also from recent versions (using 298 now), my bot just run pass some normal chests in A1, it won't be opened anyway, is this possible to be fixed or give me an option to turn bookshelf looting off? Thanks a lot.

BTW, Farm A4 for rift key is not working [Nephalem Rifts (Farm A4 Bounty when no rift keys).xml], but A1 is working [Nephalem Rifts (Farm A1 Bounty when no rift keys).xml], for A4 one, it just starting game and quitting game endlessly, I checked safest option in global settings, and also even i turned it off, it won't work anyway.