I experienced some issues with the view of the Design Library window.
When I start up Beam OS I can see about 4 or 5 lines with my uploaded designs.
But after one or two laser jobs I only see one line with my uploades designs. This makes it really hard when searching for an older design.
Yepp, this is a bug. We already have a fix and we hope that we can roll it out soon.
In the meantime, a simple page reload (F5 or cmd+r on Mac) will bring the full view back.