Can you post this segment on YouTube and post a link to it here?
If we can see what you're describing, we can more likely help you.
It also might help if you'd post as screen capture of the clips and transition on your timeline to this forum.
Steve thanks for the answer
Here is the link from an example :
and the captures :
The moment of the transition
The photo of the the mask
If there is anything else you need to see just tell me
Two things that could be at work here:
1) You're using WMVs as your source video. I'm not sure where these files came from or what type of WMVs they are, but they could well be causing a couple of issues for you -- including the fact that your final output video has your video "floating" inside the frame, with black around your video. My recommendation would be to load the video into Windows MovieMaker Live and output it as 1920x1080 MP4s.
2) Make sure that, wherever you add a transition, your videos are trimmed back half a second or so. As I show you in my books, transitions involve using a half a second or so beyond the end of one video and a half second or so before the beginning of the next video. Trimming each video back half a second or so will ensure you have a little extra footage beyond the end point of one video and the beginning point of the next to create the transitional segment. If there are no extra "handles" for the transition to work with, you may get freeze frames or a cut rather than a transition.
But try converting those WMVs first! Technically Premiere Elements can edit WMVs -- but they aren't the best format to work with, and doing so can give result in some strange behaviors.
Is this transition part of the stock Premiere Elements set, Panos?
I don't see it in my program.
Yes Steve, in Premiere Elemenets 12 it's located to... Transitions > Special Effects > Mask.
I reinstalled my version 12 and gave the transition a try and -- you are absolutely right! This transition simply doesn't work! Which may be why it was removed from the program in subsequent versions.
ok that's a good reason not to think that I'm doing something wrong, on the other hand is a pity because it must be good transition.
So...I guess no solution for this, right?
Unfortunate but true.
Ok thanks for the help