I am using Qlik Sense desktop vs 2.2.4 and find that on occasions my reload hangs on the final "save" stage (i.e. display is "Saving app...").
The only way to get out of this, without corrupting my document, is to log off.
The document is not large and typically saves in a second.
While hanging the document is locked by Qlik and copying is prevented.
I only have 1 document/application open and only one tab - so I do not believe I have a caused a file access conflict, but it seems to me that Qlik is behaving as though the file is locked and is waiting to gain access.
Usually logging off and back on again resolves the issue, but on occasion I have to reboot.