I recently upgraded from V.13 to V.18 and mp4 files that open easily in V.13 will not open in V.18. When the file loads and after the audio is built, the video is black and will not play. The program eventually just crashes.. The frame counter gets stuck and shows a 1....... in the section on the right just below where thre video should be playing. The odd thing is the program was working for several days, then crashed on a render and hasn't worked properly since. I have set all settings to default with no effect. I've not yet tried reinstalling the program.
A different issue is that neither v.13 or 18 will show effects in real time. The effect only displays when the effects window is closed.
I suppose this might be fixed by updating the NVIDIA driver?
Thanks for any help!