I've never found a setting to prevent this. What I do is after deleting the object in the isolated view, I click the object I want to be focused on before I hit Alt-Q or the button to "un" isolate. Max will revert back to a different view but if you just tap 'Z', you'll focus right back on that object you selected before you unisolated. I do it by muscle memory now and it's not much of a pain.
Rob Holmes
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3ds Max (2023-2025), V-Ray 6.2, Ryzen 9 3950-X Processor, DDR 4 128MB, Gigabyte Aorus X570 Master motherboard, Sabrent Rocket NVMe 4.0 M.2 drives, NVidia RTX 4090, Space Pilot Pro, Windows 11 Pro x64, Tri-Monitor, Cintiq 13HD, Windows 11 x64
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