kdenlive: effect_chain.cpp:1746: void movit::EffectChain::render_to_fbo(GLuint, unsigned int, unsigned int): Assertion `status == GL_FRAMEBUFFER_COMPLETE' failed.

Thread 23 "RenderThread" received signal SIGABRT, Aborted.
[Switching to Thread 0x7fff6a9eb700 (LWP 8293)]
0x00007fffefdbe04f in raise () from /usr/lib/libc.so.6


Reproducible: Always

Steps to Reproduce:
1. add audio (.wav) track to bin
2. drag it to the timeline
3. crash

Actual Results:  
It crashes

Expected Results:  
Adding a track to timeline shouldn't crash program.

(gdb) thread apply all bt

Thread 23 (Thread 0x7fff6a9eb700 (LWP 8293)):
#0  0x00007fffefdbe04f in raise () from /usr/lib/libc.so.6
#1  0x00007fffefdbf47a in abort () from /usr/lib/libc.so.6
#2  0x00007fffefdb6ea7 in __assert_fail_base () from /usr/lib/libc.so.6
#3  0x00007fffefdb6f52 in __assert_fail () from /usr/lib/libc.so.6
#4  0x00007fffb0396392 in movit::EffectChain::render_to_fbo(unsigned int, unsigned int, unsigned int) () from /usr/lib/libmovit.so.4
#5  0x00007fffb06019af in GlslManager::render_frame_texture(movit::EffectChain*, mlt_frame_s*, int, int, unsigned char**) () from /usr/lib/mlt/libmltopengl.so
#6  0x00007fffb0604a02 in ?? () from /usr/lib/mlt/libmltopengl.so
#7  0x00007ffff6f98058 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#8  0x00007ffff6fadf89 in ?? () from /usr/lib/libmlt.so.6
#9  0x00007ffff6f98007 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#10 0x00007ffff6fab734 in ?? () from /usr/lib/libmlt.so.6
#11 0x00000000007410fd in RenderThread::run (this=0x7fff4c000c30)
    at /tmp/yaourt-tmp-farid/aur-kdenlive-git/src/kdenlive/src/monitor/glwidget.cpp:1248
#12 0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7fff68d6d700 (LWP 8292)):
#0  0x00007fffee33110f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff6fab9bb in mlt_consumer_rt_frame () from /usr/lib/libmlt.so.6
#2  0x00007fffac7eda20 in ?? () from /usr/lib/mlt/libmltsdl.so
#3  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fff6baed700 (LWP 8285)):
#0  0x00007fffee3314b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff0862b66 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/libQt5Core.so.5
#2  0x00007ffff085e274 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 15 (Thread 0x7fff7b7fd700 (LWP 8284)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff0a9059b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff0a3a0da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/libQt5Core.so.5
#5  0x00007ffff085d0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fff7bffe700 (LWP 8283)):
#0  0x00007fffee33110f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff0862c2b in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/libQt5Core.so.5
#2  0x00007ffff623b435 in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007ffff623bd2a in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7fff94eb5700 (LWP 8282)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff0a9057f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff0a3a0da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/libQt5Core.so.5
#5  0x00007ffff085d0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fff957f6700 (LWP 8281)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007fffee33110f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff0862c2b in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/libQt5Core.so.5
#2  0x00007ffff623b435 in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007ffff623bd2a in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7fff96ffe700 (LWP 8280)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe7c2b121 in ?? () from /usr/lib/libpulse.so.0
#2  0x00007fffe7c1c8f1 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#3  0x00007fffe7c1cf8e in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#4  0x00007fffe7c1d040 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#5  0x00007fffe7c2b069 in ?? () from /usr/lib/libpulse.so.0
#6  0x00007fffe140fed8 in ?? () from /usr/lib/pulseaudio/libpulsecommon-9.0.so
#7  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fff97fff700 (LWP 8278)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff0a9057f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff0a3a0da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/libQt5Core.so.5
#5  0x00007ffff085d0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff2457445 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fff9cfee700 (LWP 8277)):
#0  0x00007fffee3314b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff0862b66 in QWaitCondition::wait(QMutex*, unsigned long) ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/libQt5Core.so.5
#2  0x00007ffff085e274 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fff9dfef700 (LWP 8276)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff0a9057f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff0a3a0da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/libQt5Core.so.5
#5  0x00007ffff085d0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff2457445 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffa1a91700 (LWP 8275)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffa2518cbc in ?? () from /usr/lib/libusb-1.0.so.0
#2  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffcbfff700 (LWP 8274)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff0a9059b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff0a3a0da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/libQt5Core.so.5
#5  0x00007ffff085d0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff2eeae75 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
---Type <return> to continue, or q <return> to quit---
#8  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffd25f7700 (LWP 8273)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a362 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00007fffd5205726 in ?? () from /usr/lib/libgio-2.0.so.0
#4  0x00007fffe80c02b5 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffd2df8700 (LWP 8272)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fffe809a131 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fffe80c02b5 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffdc918700 (LWP 8271)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe77d58e0 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fffe77d7679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fffdee8c469 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007ffff0861d78 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffee32b454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffefe737df in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff7ed57c0 (LWP 8270)):
#0  0x00007fffefe6a48d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe8099fd6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe809a0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff0a9057f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff0a3a0da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/libQt5Core.so.5
#5  0x00007ffff0a425cc in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#6  0x000000000048aa12 in main (argc=<optimized out>, argv=<optimized out>)
    at /tmp/yaourt-tmp-farid/aur-kdenlive-git/src/kdenlive/src/main.cpp:158