Viewing with the System Activity monitor I can see a process listed for every time I have opened Gwenview each using up approx 12-14 MB of ram. This is after exiting the app.

Reproducible: Always

Steps to Reproduce:
1. Open Gwenview
2. Use System Activity monitor and notice a new Gwenview process has been created.
3. Close Gwenview then open it again.  You will now have 2 processes.
4. Repeat step 3 and new processes will be created and they don't close causing them to stack up.
Actual Results:  
I now have multiple Gwenview processes running.

Expected Results:  
I should only have 1 instance running.

This is the terminal output when starting and then exiting the program.

gwenview
Object::connect: No such signal org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
Object::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
Bus::open: Can not get ibus-daemon's address. 
IBusInputContext::createInputContext: no connection to ibus-daemon 
gwenview(10608)/kdeui (kdelibs): Attempt to use QAction "edit_redo" with KXMLGUIFactory! 
gwenview(10608)/kdeui (kdelibs): Attempt to use QAction "edit_undo" with KXMLGUIFactory! 
gwenview(10608) Gwenview::MainWindow::Private::sideBarConfigGroupName: mCurrentMainPageId == 'StartMainPageId'