I use video editing private quite a lot, changed from the better Kdenlive to Pinaccle (Windows) but get tiered of the bad performance of windows pinnacle.
I thried installing kdenlive via software - comes from package hub I thing. Installation work well, but Kdenlive do not start.

hans-christoph@LINUXSLES:~> kdenlive
Icon theme "breeze" not found.
Icon theme "breeze" not found.
No LADSPA plugins were found!

Check your LADSPA_PATH environment variable.
KCrash: Application 'kdenlive' crashing...
KCrash: Attempting to start /usr/lib64/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0
Warning: connect() failed: : No such file or directory
KCrash: Attempting to start /usr/lib64/libexec/drkonqi directly
found lsb_release
Using /proc to determine executable path
Executable is: "/usr/bin/kdenlive"
Executable exists: true
Enabling drkonqi crash catching
QSystemTrayIcon::setVisible: No Icon set
Sending SIGSTOP to process

[1]+ Stopped kdenlive

Any Idea why it not works?