coordinates without degrees on map

[Luisarreguin]

Greeting all.
I have problem with the coordinates in the map.
The coordinates appears without degrees on map.
I used the next libraries
library(tidyverse)
library(sf)
library(viridis)

The Projected CRS is: WGS 84 / UTM zone 14N

I used the next code to generate the map
ggplot() +
geom_sf(data = bc_mun, aes(fill = CVEGEO)) +
theme_bw()

And this is the input

[williaml]

Hi, possibly related to this?

r - degree symbol incorrect in map axis labels - Stack Overflow

[Luisarreguin]

Yes, thanks!

My solution was to Tools -> Global Options and here I changed my backend to Cairo