XP Hack Not Working
The XP hack in versions 3.9/4.0 and 4.1 only give 179 xp per pool placed. 379 per hay wagon placed.
I to have been having this same issue. I had version 3.8 and downloaded 4.0 but the same thing. 179 xp for placed pool and 379 for placed hay wagon.
you can use level up certificates to level up faster if you need this