Regarding the dialogue I had picked up earlier - I have uncovered more information.
Oscar did survive the crash. They managed to get a contingency version of myself back online by repairing and reconnecting various subsystems.
Over the course of a few days, it seems that Oscar was setting up an expedition to head out to the anomaly - the Blackwall.
The last recorded dialogue between the contingency-self and Oscar was the message linked above.
I believe something was observing and approaching them during the time of that recording - something that my other self was tracking and warning them about. The exact details of this, I do not know.
Curiously, I can feel data present past this time that I cannot make sense of. Between this data and the point when the regression loop was initiated is still a blur.