Printer intersect model with plane - CREALITY LD 006

Hello,strange thing occurred on Creality LD-006.

Printer change .ctb file and puts strange plane into middle of model.

ctb file is corrupted after failed print.

Print can be fine twice, next time it happens with same source files.

It happens randomly and often.
No matter if Chitubox or Lychee is used.

obj and ctb files files are here:
https://file.io/Jf14MajLgrp6

https://i.imgur.com/5Xyux6K.jpg

Please, does somebody know what is happening, is this bug of printer ?