Oracle to Oracle one tasks with 66 tables full load: Error "Position does not exist"

Hello,

I am a newbie, working on a task to perform full load on a bunch of Oracle tables. Both source and target databases are Oracle.
After full load of last 10 tables, started resume processing, the tasks stopping immediately after the start and ending with below error.

Position does not exist [1002510] (at_audit_reader.c:784)
00005936: 2019-10-08T21:59:51 [TASK_MANAGER ]E: Stream component failed at subtask 0, component st_0_S_DCAT_LOGSTREAM [1002510] (subtask.c:1368)

Can you please provide some insights of what this error is about?


It was fine on first round of tables added and loaded successfully.

Thanks!
MK