Beat Designer Fill Loop Patterns Disappear from Midi Track

I am using Cubase 7.5 in Windows 7

When I use the ‘fill loop with pattern’ function from Beat Designer the pattern appears in the midi track as expected.
I turn off Beat Designer and the pattern plays as expected.

However, if I return to a project after saving and closing or saving and continuing the pattern in the midi track will disappear.
Sometimes the ‘part’ remains with no content or the part disappears as well.

Has anyone else encountered this?