1.) Bounce to Disk (in the toolbar, upper-right corner next to the Media Browser button). Make sure the region you want to bounce is solo’d
2.) In Ultrabeat, load the pattern, then at the bottom, locate the button that looks like it has “dots” on it, that will allow you to drag-and-drop the sequence into the arrange window as a separate MIDI loop. Then, you can loop that or export it using the Bounce function
3.) If a region is already converted to and audio loop, in the bin (hit the letter “B”), then with the region selected/highlighted, go to the bin’s File menu and choose “Copy/Convert” to access that function.