mxf op1a adds black bar in the lower third of the screen

Hi Guys,

has anybody encountered this problem??

Encoding in to pretty much any HD MXF OP1a will render an extra black bar for no reason to my files, when encoding on the preview window this bar is not there. I have installed Medie encoder like 3 times and deleted the preferences but still have the same issue.

I actually only need to render in XDCAM HD 50 PAL 50i @ 25 FPS

Cheers