Is this really weird?
I step on the scale before I go to the gym, drink a lot of water and don't use the bathroom while there, have a protein shake and a piece of fruit afterwards. Then I'll step on the scale again right before I hit the shower, and it's not uncommon for me to be a few pounds heavier thanks to whatever little pump I have plus all the water I've just drank and post-workout snack far outweighs what I sweated out/burned off in calories.
Now just scale that up for a guy LeBron's size, and it doesn't seem that outrageous to me. Maybe a slow paced game or one LeBron didn't play heavy 1st half minutes (
like Game 5 against IND in 2014), drinking a lot of fluids, with no bathroom break, maybe a small snack snuck in there somewhere, plus the general non-precision scales are known for, for a guy LeBron's size this seems possible.