Fri Oct 19, 2018 12:29 am
Hey Piotr
It may be a matter of perspective, but I think for most workflows, a Compound Clip should retain the alpha channel of the contained clips, not 'default' to solid black.
If you need to force a solid color background to your Compound Clips simply add a Solid Color generator behind the clips in your compound ... or if it's Text only, just change the Layout > Background >Alpha property to 1.0 in your Text clip. That should do it.
Regarding why it's suddenly changed behaviour for you, I think it has something to do with the contents of the Compound Clip ... if it contains a single Text item it works as it should (retaining the alpha), but if you add a second Text item (or any item), the Compound Clip loses its alpha channel and reverts to solid black. Hopefully one day that will be fixed.
Hope it helps
Andy