Terra Nova Claim in Drake

[Downdraught]

Has anyone been able to find all the secrets in this area yet? I swear I've done about 25 laps of the whole area so far and there's still 2 left. I've got a battery floating around that doesn't seem to have a socket. Just wondering if there's something bugged or if it actually is possible to finish?

[Downdraught]

Update: I decided to head back to home base to go get something, when I came back my sensors picked up the missing secrets almost immediately. Not sure if that was glitching or just very poor luck, but it appears that the tried and true "turning it off and on again" style answer seemed to work.