Hi @[deleted]
What you have shown me in "look Here" is exactly what I am trying to achieve and what I see in preview but not what I see in the exported version.
"In the FX box for the sequence the background is transparent?"
When I click on the FX button on the Grey portal clip and the FX dialogue box opens I can see the portal opening and closing by moving the red slider/cursor position. The background in the clip preview screen is a checker board patten of light and darker grey squares, as it is when I have applied a transparency mask and unchecked the " mask inside box" for other FX clips. I am not trying to apply any FX's to the portal clip I am just looking.
From your suggestions with my last export problem my PC's drivers are fully up to date as is the version of Windows 10 that I am using.
Did you look at and play the top clip of the two above. it shows exactly what I am getting on export?
I have tried exporting mp4 1080 and am still getting a black screen while the portal is clip is running.
Exporting the Grey Portal clip as mp4 and using the mp4 file in the main sequence did not work. The background on the exported clip is black whereas the background on the png files I downloaded are clear. If you look at them in the images bin you can see the checker board behind them.
Regards Dave
