This afternoon/evening, I had a bad time with this beta and the closure feature. You may get bored reading this.

After leaving work I test closed a segment on my drive and it seemed to work ok. I then test closed another segment a little later. This time, though, I had to start driving and so left the report to timeout on the Later timer. It collapsed into a small moving icon on the right side of the screen as I'd expect.
What happened next was unexpected: I tapped the icon to bring the report back up and this is how the screen looked:

We've seen this type of thing happen with the interface before, with full-screen size icons. Never got it to repeat before. With the closure report, it is repeatable.
Notice that the Construction button is depressed. I didn't do that. I hadn't tapped anything. It came up that way.
Next, I tapped either the X or Back button, most likely the close button, and my screen changed to this: (Click for native image)

In that small version of the screen in the middle, Waze was operating. I could pan the map and I think I may have even been able to tap a button. At some point, the interface restored, but I don't recall how that happened.
After that small-screen thing happened, any time I tried to report a road closure, no arrows would appear on segments to select:

I tried many times to get it to work again, but nothing would work. I had to stop Waze and start it up again. After that, the arrows on the Closure selection screen worked again. Logs submitted at 1:18AM 2013-02-08 (5:18PM local time)
After logs were submitted, it happened again, with the Later timeout (note the changed time compared to the first one above):
