In case you consider updating packages related to Gnome/PyGObject/Pango or a Gramps package (e.g. Flatpak) shipped with an updated versions of those:
Over the past few hours, two users have reported errors, likely due to an Pango update with an undocumented change in the signature of Pango’s extents_to_pixels() function: #60 #61
Rolling back to an earlier version of Pango seems to solve the problem.