Thanks for confirming! I have reached out to a few members of my team to see if they might know what is going on here, as this is definitely very strange.
This happened to me yesterday. In my case there was an error in one of the components inside the listview - a bad default value. I had to drag the component out of the listview, fix it and put it back.
This also happens when there are no rows to display (Number of rows = 0). If this might be the case, set this manually to 1 and see if they come back. I typically dev with it set to 3 and put it back to what it needs to be for real testing - back and forth. (Feature request in order here maybe?)
If not those, hopefully puts you on the right track.
We are still digging into this, I checked with the engineer working on it, and he believes that he has found the cause, but it is quite difficult to fix. We will post again here once it is resolved!