Problems with wavelab playback

I have a problem with wavelab 11. When trying playtback an audio file the play button is activated, but not running, do somebody have a solution?

What do your audio connection settings look like, on the WaveLab preference page?

Audio connections are good and connected tot he UR44

It looks when starting playback the audio get is a short loop between a vertical green and red line.

Every time when pressing the spacebar the section is going a few seconds in time further.

Any screenshot?

Dear PG, See Below,

At this moment only the red bar is visible.

When pressing spacebar the play button turns on green, but is not playing.

Is there any way to reset to factory defaulds or something?

Start again after removing all plugins from the Master Section.

Great it works !!

Thanks fort he support