replaced picture is smaller when published

This can happen for a few different reasons in Storyline, especially when images have been replaced rather than inserted fresh.

A few things to check:

• Picture cropping: The image may look correct in Storyline because of the crop settings, but publish differently. Try removing the image completely and inserting it again rather than using "Replace Picture."
• Image dimensions: Ensure the replacement image has the same aspect ratio and resolution as the original.
• States: Check whether the object has multiple states (Normal, Hover, Selected, etc.) and verify the image was replaced in all relevant states.
• Scaling settings: Look at the Size and Position settings to make sure the image is set to 100% scale and hasn't inherited unexpected scaling.
• Slide Zoom or Player scaling: Test the published output locally and compare it with Review 360. Sometimes browser zoom or responsive scaling can make images appear smaller.
• Corrupted object: If the issue occurs only with certain images, create a new picture object and insert the image from scratch. Several users have reported that this resolves odd sizing issues that persist after using Replace Picture.

If you're seeing this across multiple files, it may also be worth checking whether a recent Storyline update introduced the behavior. Sharing your Storyline version and a screenshot of the image properties would help narrow it down.

Thank you for your reply!

There is no cropping. The dimensions are exactly the same, in this case 427 x 720px. The pictures have no other states than "normal". There is no scaling or slide zoom. It occurs with different .jpeg files. 

My SL version is v3.118.37003.0. I am sure this has been introduced with one of the last updates.

This is usually caused by image scaling or a bug with the "Replace Picture" feature in Storyline. Try deleting the image and inserting it again instead of replacing it, then republish. Also check that the image scale is set to 100% and that you're using the latest Storyline update.

If it only happens in Review 360 and not in local publishing, it may be a Review 360 rendering issue.

I also think that it is a bug. It also happens with local publishing, and it seems only to happen when I replace a picture. Deleting the old picture and inserting a new one works.