Metrics Tool disappeared after touching the Pitch parameter

As per title: I was playing a bit with the parameters, so to configure it at best, and when I increased the Pitch past about 25 (I think), the whole OSD disappeared, and I couldn't bring it back, no matter what I did.

I tried disabling, re-enabling, changing again all the parameters... it was simply gone for good.

The only thing that worked was uninstalling and reinstalling the tool.