Cannot get transparent background to text to work on Kdenlive

Hi i'm Geoff,
I am using Kdenlive video editing suite with a good measure of success, however, when I make a transparent background to text in Gimp photo editing suite, I put it on the top timeline with the picture I want to superimpose it on on the next timeline down, I then add a composite transition, this works well when playing the video back on the computer, but when I burn it to disc and play it on my video player, each time one of these transition appear I get no text, instead I get large letters spelling INVALID.
This is very annoying, can anyone tell me how to get around this problem please

Which Kdenlive / MLT versions? When you render before burning, the problem should also appear on the rendered file before burning or that really doesn't make sense... Can you check that please?

same problem but Im not burning it onto a dvd/cd it still says invalid where the picture should be

ive tied everything in render but nothing works! help!

ive tied everything in render but nothing works! help!