Broken: (example: 2.80, edbf15d3c044, master, 2018-11-28, as found on the splash screen)
Worked: (newest version of Blender that worked as expected)
Short description of error
when trying to append a file the file i saved to put on blender does not appear an when i try to append one that does appear it gives me an error saying "'C:\Users\TEMP\Documents\my file\': not a library and i do not know what to do
Exact steps for others to reproduce the error
click on a folder and file does not appear then press append to import it
Based on the default startup or an attached .blend file (as simple as possible).