8.1 Substance Painter crash and corrupt the scenes

HelloAfter update Substance Painter from 7.4 version to 8.1, if i try to save the scene, or export textures, it will crash and corrupt the scene without warning, and even the autosave appears corrupted. I have updated my drivers, and the local disc C it's not full at all.
The specs of my computer:Intel(R) Core(TM) i9-10920X CPU @ 3.50GHz64 RamNVIDIA GeForce RTX 2080 TiAny idea of what is causing this problem?
Thanks.

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