After spending some time visiting lots to gather cuttings, I get home to see the cuttings have been grouped into incomprehensible stacks (that is, I can't understand why they are stacked into groups the way they are).
My problem is: When I graft a cutting from one stack, the entire stack vanishes.
As a result, I can go out to gather multiple cuttings, but only one cutting of each plant type. So time-consuming. Grrrr
When I take cuttings and graft, I do not queue the actions. For example, when the same takes a cutting, I wait until the rose-symbol action vanishes from the queue before instructing the sim to take the next cutting. I follow a similar procedure in grafting.
And in case you're wondering, I did posted about this in an existing thread on EA Answer HQ:
http://answers.ea.com/t5/The-Sims-4-Bug-Reports/grafting-inventory-glitch/m-p/4598074/highlight/false#M13771If you know of a work-around, I'd love to know.