Image Picker for Image Type is using legacy DNN image picker (folder structure isn't always up to date).

When adding new content items that have the image type, the picker looks to be using a legacy image picker in the DNN library.
This should be updated to match the current image picker used elsewhere in DNN in order to pull the most up-to-date folder structure.

A newer image picker can be found within Page Settings -> Basic Settings -> Icon (File Bubble) within the DNN Platform