Datanode falling into water respawn indefinitely, cannot pickup.

[tradingstation]

We killed enemies during 'Enter the Armored Vault' but unfortunately we ended up killing the target and his datanode fell into water and respawn on a sloped rock > fell > respawn > fell indefinitely. We couldn't pick it up and forced to abandon the mission.

This spot near the edge of the PoE map in particular, where there's a Grineer outpost with long walkway ramps over water.

[Chitanda.Eru]

Use the Fishing Spear It worked for me out of frustration.

 

but the armored vault decided to not open that time.