Topic: Problem converting to mp4 for Wii U with Mediacoder

The videos seem to play just fine, except when I seek to a different part of the video, it plays for about 30 seconds and then stops with the loading icon displayed in a never-ending buffering loop. I thought maybe it was from this last Wii U update, but having checked a pre-converted MP4 (that I did not convert), it seems to have no problems at all, so it has to do with my settings for the conversion. Has anyone had successful conversions with Mediacoder on the Wii U?