I am transforming x and y coordinates from NAD27 NM EAST FTUS to lat long.

This code had worked in the past, but just tried it recently and it is not working. Any ideas what could be happening?

I am using the following code

from pyproj import Proj, transform
inProj = Proj(init='epsg:32012', preserve_units = True) #nad27 NM EAST FTUS
outProj = Proj(init='epsg:4326' )
long, lat = transform(inProj,outProj, 712000, 478500 )

However, the code returns:
(inf, inf)

( Python 3.12.4, pyproj 3.6.1)