Hi everyone,

I am new to Tracker and struggling since two days with the following problem:

I import a video as .mp4 video (Codec: H264-MPEG-4 AVC (part10)(avc1), Dimensions: 720 x 540, 29,7 fps (not constant)) to Tracker Online (no matter whether I use drag and drop or open file). I loaded another video with the same codec, dimensions and fps, only extended video length and it worked. If I open the video with VLC Player it runs normally...
The video appears in the  little preview window and then loads in the tracker interface. So far so good but wen I press play the video starts the first 3 frames and stops afterwards while the time bar is going further.
I tried to change the video format in different formats but the video cannot be opened or the same problem occurs.

Can someone here help me to fix this?

Thanks in advance,

Vanessa