GL error 0x502 (GL_INVALID_OPERATION) at effect_chain.cpp:1909 QSocketNotifier: Invalid socket 15 and type 'Read', disabling... QSocketNotifier: Invalid socket 29 and type 'Read', disabling... QSocketNotifier: Invalid socket 36 and type 'Read', disabling... KCrash: crashing... crashRecursionCounter = 2 KCrash: Application Name = kdenlive path = /usr/bin pid = 3316 KCrash: Arguments: /usr/bin/kdenlive KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit sock_file=/run/user/0/kdeinit5__0 kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/libexec/drkonqi' from wrapper. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/libexec/drkonqi' found lsb_release Using /proc to determine executable path Executable is: "/usr/bin/kdenlive" Executable exists: true Enabling drkonqi crash catching Sending SIGSTOP to process [1] Terminated kdenlive [2]+ Stopped kdenlive