Question / Problem:
Index fields are cleared out when an image’s orientation is changed during verification and validation.
Answer / Solution:
In this instance, the “Clear index fields on pages that are replaced or moved” Validation options was enabled in the Batch Class Properties (Advanced tab). Rotation is the same as replacement or moving for the purposes of this feature; therefore, the Index Field data will be lost after rotating the page.
To retain the index data after rotating images, uncheck the "Clear index fields on pages that are replaced or moved” option in the Advanced properties of the Batch Class Properties.