I see this has been a problem 2 and 3 years ago for some people, but I haven't experienced it until now. The Info Overlay has stopped working in the Print tab. Clicking "I" toggles the flag in the pulldown menu, as does clicking it in the pulldown menu, but no Info Overlay shows up. I tried rebooting.
Please reset the Lightroom preferences back to defaults.
"Press the shift + option keys immediately after you restart Lightroom, and select Reset Preferences from the resulting dialog box"
Let us know if that helps.
Reseting preferences is NOT going to help this problem. Info Overlay used to work but it was broken by Adobe in Lightroom 4 or 5. It has been reported many times but NEVER fixed. This is another of the MANY bugs for features that once worked, were broken and then never fixed. Adobes bug fixing record can only be classified as atrocious.