Lcd.drawstring fails to display data read from a file

#File Test

from machine import LCD

lcd = LCD()

lcd.drawString(“This Line works”, 10, 0)

The WIO Terminal is great except for this problem!
with open(‘SixDayOutput.txt’) as fo:
for line in fo:
print(line) # This prints correctly
lcd.drawString(line, 10, 20) # This crashes the program

This program fork when the last line is omitted.

Any ideas why?