false negatives on Zip file validation

[mrozx]

Describe the bug
Since version 4.2.0 Zip file validation fails (false negative)

To Reproduce
Steps to reproduce the behavior - c# code:
// filebyte bytes array starts with [80,75,3,4...]
bool isValid = FileTypeValidator.Is<FileTypeChecker.Types.ZipFile>(fileBytes);
// isValid is false !!

Expected behavior
isValid should be true

Additional context
Works properly on version 4.1.1. Issue started on version 4.2.0.
Tried to created zip files both with Windows context menu and WinRar Zip Archive. Both ways, the byte array starts the same.

Thanks
Maoz