If there is no "task finished succesfully" on the last line, consider the task failed.
Saw some really weird cases when conenction to database timed out, or there were insuficient permissions to publish the QVW file. All resulting in warnings but no error message. Or the load just crashed and file never finishes -> there is no success line
Something always could go wrong. Sometimes we counted how many recipients are configured in QEMC, versus how many are applied to the file itself. There were differences. Expired ActiveDirectory accounts ?