After I reinstalled the Android SDK Tools, emulators have become slower.
What can prevent the display of the new projects? B4A has not been touched, the tool is "new", I can see the old projects, so there may not be a problem of antivirus or firewall...!
The only thing that comes to mind is a virus, although an antivirus is allways active on the PC.
I launch the antivirus scan, then I have no other ideas.
If I understand correctly, after the first character, there are three groups "rwx" to read, write, execute for the owner, for the group and for anyone.
The first character should be "d" for folders, but for the sdcard (on my emulator and device) it is "l"