Subsequent Items In Multiple Prints Don't Start At Same Height

[GoremanX 0]

When I setup a print with multiple items, and use the "One at a time" special mode, the first item prints fine. But the second item and every subsequent item starts slightly higher than the first, which leads to them failing because the initial layer doesn't go down properly. This has only been an issue on my delta printer, not my Ender 5. I'm not sure what causes this, but I can confirm that the position of the print head is still accurate after that first print. The Z hasn't changed at all.