Tweaks brings back the .back error. It is not fixed in ALT or the provided file.
ALT/tweak also has this unlisted change:
#var racetext
var racetext = ""
var marketrate = 1
sattext = "\n\nA sign board lists current relative pricing by race:\n"
for i in globals.races:
marketrate = round(globals.state.racemarketsat[i]*100)/100
#racetext = i.replace('Beastkin', '')
racetext = str(i.replace('Beastkin', ''))