I know two things that can cause that:
- You landed on a spring after activating Din. Based on your description this clearly wasn't the case.
- You were hit with extremely weak attack with minimum knockback after activating Din. Were you fighting someone with a weak projectile (Diddy, Mario or Luigi for example)? If you were are you sure you didn't get hit by one of their attacks? Especially Diddy's peanut popgun shots can be next to impossible to see flying when fully loaded.
If you're sure that you didn't get hit by anything and simply freed yourself from controlling the Din on your own then this needs to be examined more. I suppose you don't have a replay?
In other news: Considering all the hardships encountered just to upload a ****ing 40 second video of the D-tilt to dropthrough Bair I've been convinced the whole thing is cursed.
First, I promised to record and upload the replays Kata had about the tech. We wated for multiple days for our wiis to register each other just to find out he couldn't send the replays to me through brawl so he was forced to copy the files directly from his SD card. Then, when I started recording them my capture softare started glitching... twice. As a result I had to play around with settings and record everything twice.
The next problems appeared when compiling the video file into best formats: the resolution settings were all ****ed up. No problem, I compile the video 5 times until I find the quality to be good enough. Then starts the uploading part but youtube encounters an unknown error and I'll have to upload the ****tier quality version to get it to work... until youtube freezes again. After three hours I give up and cancel the uploading just to find out the video is actually up, just not showing in the search results.
To top it off, I had to write this post
twice three times because my web browser crashed. However, even though the whole universe tried to stop this from happening, here's finally an example video of D-tilt on a platform leading into dropthrough Bair:
http://www.youtube.com/watch?v=31ADoaOeVBc
/rant