DO12 Image Viewer and scroll wheel

When I am using the image viewer in DO12, I can move from one image to the next with the scroll wheel. However, if I activate the metadata panel in the viewer, this function ceases to work. Close the panel and function is restored.

Is this as it should be, or is there a problem, or even a configuration issue?

After opening the metadata panel, click back on the image itself. Does the wheel then change images?

You got it in one, Leo. If you click on the image, the scroll wheel is active again. Many thanks.