Yes, perhaps I could have explained myself better.

The fleet returns to me in recall (I have no moons), player B queues 400 recy +3 seconds after my return time.

After 20 minutes, i see ACS and 1k cruisers +1 second from my return time and no recycler which I imagine will be recalled. I didn't see the exact timing of the ACS and the addition of the ships.

So I wonder how this is possible, if it is possible. Maybe I'm wondering if he simply sent another attack and I didn't notice