When I try to open a folder in Browse Folders it is not possible. Folder does not open, double click run one folder up

How can I walk into my folder structure and upload or select an image?
Some folders I can walk into using the pulldown, other folders do not open and I go one step up in the structure instead of down into the folder like with double-click.
Reason seems to be the blank in the folder name. Renamed without blank I can walk into the folder.