Blueprints, deconstruction, and upgrade planners that are in a logistical inventory such as a Requester Chest, or a Landing pad, don't get moved to the "Trash" section when they are no longer requested.
[2.0.42] Blueprints not trashed when unrequested
Re: [2.0.42] Blueprints not trashed when unrequested
Thanks for the report however this is working as intended. Blueprint books and selection tools (blueprint, upgrade planner, deconstruction planner) are excluded from trash unrequested.