Pretty much what the title says. Minorly annoyed when I find a ship blueprint in the workshop, and the sidebar listing Required DLC isn't showing any I don't have, subscribe and launch the game, only to find the blueprint requires additional DLC I don't have in order to properly paste in.

Really there should be more vanilla versions of blocks currently only in DLC. Like the corridor blocks but they're made out of arrangements of the armor plate block, or the offset door but its the current old door in the offset position.

Edit: I guess my point is that uploaders really should list all the Required DLC their build requires so as to not surprise people when they subscribe and find out in-game that there's parts missing.
I mean, some examples would be ships that use the airtight corridor or extended passage blocks that without the DLC for those, the ship ceases to be airtight.