Bug: Missing Curves

I found a file in which many curves were missing. I stripped it down as small as possible and it appears the curves are actually there somewhere but not visible.

In the attached file, no curves show up. But if I do <CMD/A> the properties panel tells me I have three curves selected. Yet I cannot zoom to the selected curves.

The file is also 25MB once it has been purged. (Hint: Try import).
Problem Curves.zip (12.3 MB)

Hello - that viewport is corrupted somehow - I had to close it and then 4View (Windows). But I do not know how to fix this on mac- you do not get to close viewports on mac. I’ll add this to the pile - right now I do not see a good way out.

@miano run 4View twice in a row to reset the viewports.