Hi Adam,
You can 'reset'the work environment without closing your file. Just apply the standard profile from the Work Environent menu (below 'Preferences') and it should come back or let you turn it back on.
Think Like a Spec Writer
MacBook M4Pro - 24Gb RAM
AC4.55 through 29 / AC29.1.0 USA
Rhino 8.30 Mac
MacOS Tahoe 26.4.1