3d models are stretched out on a mobile device

Hi. I’m making a 3D game for mobile devices and ran into a bug that appears to users. I attach screenshots. As far as I understood the model of the unit is stretched in space. It does not depend on the version of the android, not on the model of the phone. Happens at android 6 or 8. On outdated or new model. Most players are fine.
What could that be? Can you tell me which way to look?

**Normal **

Bug
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game

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