Just finished my nuclear station yesterday then I'm going to agriculture.And I encounter two problem.
First is sometimes I cannot stack items ,this never happen before i start agriculture, and seems its a problem related to cropnalyzer because if i "scan" crashed item with cropnalyzer(just drag them to scan plot,click and drag back),they will stack correctly.
BTW,cropnalyzer's UI is really unfriendly 
Another problem is i cannot plant my dandelion seeds to crop block,is this a bug or i just went wrong way?