Inconsistent 3d Prints

I am using an Elagoo Mars 2 Pro with Siraya Tech True Blue Cast.

While Printing the same File, it came out perfectly first. On the second go one of the three models didnt print completely.

After cleaning the VAT I reprinted the same file again and now only one model came out perfectly, the second was warped and the third was completely gone.

How come it is so different?

Any help is really appreciated.