Unable to load files within folders

Hi, I have installed version 4.0.5 and I’m unable to use/navigate the folders on the SD card. They show up but I can’t get into them. The printer is a Wanhao i3 Duplicator Plus.
I have also tried the older 3.0.2 but had the same issue.
Any help, grealty appreciated.

Hi, There is nothing wrong in fact. This is something which is not implemented. I have an issue for that: