Why doesn't Conky output the image file correctly?

Question

linux

There is a Conky configuration file with the following key content:
...
update_interval N
...
${exec /usr/bin/wget -i ~/any_list.txt}
${image ~/any_image.png -p 2,10 -s 465x275 }
...
Every N seconds Conky downloads images from any_list.txt (which happens correctly, i.e. every N seconds the image in the directory is updated), but is not displayed. The only way to refresh the screen image is to restart Conky.
Looks like that: