I can tell you're using KDEnlive. So do I. On those many stills you faded in and out of there at the beginning, you can eliminate the background flashing in and out by simply adding a transform effect to the stills and scaling them by 1%, i.e. up to 101%. That eliminates the background around the still.
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I can tell you're using KDEnlive. So do I. On those many stills you faded in and out of there at the beginning, you can eliminate the background flashing in and out by simply adding a transform effect to the stills and scaling them by 1%, i.e. up to 101%. That eliminates the background around the still.
Actually, I'm using Shotcut, but it and KDEnlive both use MLT under the hood. I'll try your workaround, it may apply to Shotcut as well.