I looked at your file. It worked perfectly in Max 2019. I don't have 2016 anymore.
I took your file and tested it by isolating various objects and found no problems. I was thinking it might be a 'Group' issue or something. So, I 'ungrouped' everything and resaved it back to Max 2016.
Open this file and see if resaving it solves your problem.
https://drive.google.com/file/d/18LLhpwSF2WH-4bfzfQX5_ZjXGIs5psH4/view?usp=sharing
Edit: This is also something I do now and then when a file acts strange, open a new Max file with the same scale settings. Then 'Merge' the entire problematic file into this new file and save it. I've had this solve many odd issues in the past.
Rob Holmes

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3ds Max (2023-2026), V-Ray 7, Ryzen 9 9950X3D Processor, DDR5 128MB, Gigabyte Aorus X870E Master motherboard, Sabrent Rocket NVMe Gen5 M.2 drives, NVidia RTX 4090, Space Pilot Pro, Windows 11 Pro x64, Tri-Monitor, Cintiq 13HD, Windows 11 x64
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