[quote="leo"]Please give full details:
[list][*]How are you changing the tags? (Via the metadata panel, or via a command? If it's the metadata panel, is it from a lister, the viewer, or standalone? If it is a command, what's the full command?)[/quote]
It's like here. The green box shows the original created time of the image. The red box shows the second step, adding some keywords, which are called Tags here. When i save the changes, by clicking, or by moving to the previous or next image, the time in the green box will be updated to the current time. I see this happening with JPG files so far. As for the metadata settings, all three checkboxes are checked. But i didn't change this recently.