Far Harbor bugs

A bug is an in-game software malfunction that impacts visuals or gameplay in Fallout 4.

Multi-platform
The quest "Data Recovery" has 3 drives to pick up, but the quest turn-in (Faraday) only recognizes 2.

PC only

 * Companions have poor pathing and movement in all areas of Far Harbor, resulting in a lot of teleportation and stuck behavior. Tested with Danse, Cait, Piper, and Valentine.
 * Dropping meat in the water for the Rite of Passage quest may not spawn any creatures, or may crash the game.
 * Fast traveling to any location in Far Harbor may result in an infinite loading screen.
 * The Harbor Grand Hotel super mutants instantly all die for no apparent reason upon being loaded in or spawned. Any mutant hounds will be perfectly fine. Only happened on one save.

PS4 only
The achievement The Islander's Almanac won't recognize achievement after getting all 5 items.
 * To fix this, drop them on the ground and pick them back up, it should register then.

Xbox One only
It is possible to receive The Islander's Almanac achievement by viewing an Islander's Almanac magazine on a magazine rack equal to the amount of magazines left to collect (For example, viewing an Islander's Almanac magazine three times when there are three left to collect).