For compatible containers, the official update confirms a paid loading service that automatically unloads them. Manual unloading is also part of the cargo system, but the exact crane controls and sequence are 待确认. Check the trade interface for the service and its displayed confirmation cost.
The automatic unloading option
The Co-op Crew Update added a paid service for loading and unloading compatible containers. Its interface received a clearer button and a confirmation dialog that shows the charge. This gives players a documented alternative to manual cargo handling. The official notes do not publish a universal price, so use the current on-screen amount.
Cargo and vessel compatibility
The same update added clearer cargo labels and a ship menu display of what the selected vessel can carry. Certain goods can only be transported using Big Trip, according to the official trading-screen explanation. If the unloading option is missing, check the vessel's supported cargo type and the specific job or Free Trade state. The exact combination of port, cargo and ship for every delivery is 待确认.
Manual unloading and work shifts
The Career Update changed cargo handling into a longer-running process: freighters may be worked over several in-game days, and port operations continue without the player doing every task. Work shifts let you take part directly, with later updates changing when pay and reputation are awarded. This is why the job interface and the Free Trade interface may present different choices. The official material does not give a complete manual crane sequence for unloading.
If you choose manual participation, read the current task prompt and check whether a shift is already active. The full-release update improved feedback when another trade or shift prevents a new operation. It also fixed some counting and loading-plan issues. Those notes support checking the job state, but do not prove that any single button will resolve a blocked unload.
Big Trip and partial cargo
The August update changed Big Trip so its two cargo sections may be filled asymmetrically, provided total capacity is sufficient. The full release later addressed partial cargo handling and extra containers appearing during unloading or trade. This is relevant if the manifest and visible load seem inconsistent. Neither change establishes a fixed number of containers for every Big Trip job.
If unloading fails
The full release fixed cases of extra containers appearing during trade or unloading. It also addressed partial cargo handling, cranes and loading operations, while adding clearer feedback if another trade or shift is active. These fixes show that older bug reports may no longer describe the current build. They do not establish a one-button workaround for every failed unload.
Evidence
The official update log supports the paid service, compatibility display and full-release fixes. A complete manual crane walkthrough needs current game footage or direct testing. Manual inputs and twist-lock steps remain 待确认.