Your screenshot shows that you have selected an image (linked/embedded) and applied the White swatch to it.
Could you share the file with us (firstname.lastname@example.org) to take a look?
Adobe InDesign team
An error occurred while saving the commentMichelle Diamond commented
Go to indesign / preferences / 'appearance of black' and make sure you select or have selected 'display blacks accurately' from the on screen and print drop downs.