Firstly I have scoured the forum for an answer to this but cant find one!

In the rendered file some of my clips appear fine (including effects) but after 3 or so clips the next few dont appear. Then one appears, then the next one is blank and so on.

I have tried rendering to different formats but seem to get the same results.

It doesnt go blank half way through a clip, it does it at the end.

I did have all the clips in one video track, but split them between 2 tracks to see if that made a difference, it doesnt.

Any help on this greatly appreciated - Cheers!