Save breaks when changing Max LODLevel to 0 or 1

I imported a map from world machine at 4k resolution. Applied Kite Demo landscape material and then saved. I could reload just fine. After I changed the value of Max LODLevel to 0 the level would either crash or the I would save the map and it would crash repeatedly after trying to load it. Happened 2 times before I narrowed down the issue.

Hello,

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Thanks