The Pelican can be damaged by players, causing the ship to light on fire. After this happens, the ship will only allow one Helldiver to extract and will leave immediately when they enter.
When you see this visual, communicate to your teammates to drop their samples and have one diver enter the ship with all of them on hand.
This really should be communicated by the Pelican pilot, ideally by a simple voice line:
"The pelican has experienced critical damage, we can only carry one Helldiver!" for example would suffice
Alas, there is nothing but the visual which to my knowledge no one has talked about since launch. Here it is though! :^)
![](https://i.ytimg.com/vi/G1ne8yIdE1w/maxresdefault.jpg)