I recently downloaded pokemon Spork and I have really been enjoying it. I noticed that when my lanturn reached level 28 he went back down to level 24 it happened right after I won again the second gym. Sorry if this bug has already been reported. I tried levelling him up again to see if he would then be on level 29. He is currently on level 25. I don't know if the issue will happen again when I get him back up to level 28 but I will let you know.