I’m new to UE5.3. Working on MacOS. I have several birds (skeletal mesh) animated along splines in Sequencer. With Anti-Aliasing turned on in the Render Queue Settings all but one bird disappear when rendering out. With AA turned off all birds are there.
Found the problem: in Render Queue Settings when the Temporal Sample Count is higher then 1 the birds disappear – so it’s too much motion blur i guess for my animation. With Spatial Sample Counts it’s no prolem.
Temporal Samples tick the engine forward into subframes to create motion blur. If things are disappearing I would disable the frame lock in sequencer and check your subframes outside of MRQ to make sure things are not actually disappearing in subframes in the editor.