Signal probe stopped displaying numbers

The signal probe recently stopped giving number data for when I hover over patch cords.

I rely on this quite heavily for seeing real-time feedback of values such as filter cutoff across several mc. signal paths. The visual element of the each strand seems to have become less accurate too, generally just displaying whether a signal is moving up or down..

I've tried turning the signal probe off and on with no luck.

Does anybody know how to revert this?

Thanks!