Hello Kenshirou, my in game name is Rainstoney, I am the leader of Legacy on server 1.
Anyway I want to give you some of my findings about the Stat rounding bug:
I suspect that the code is use Integer instead of Decimal when storing the Stats locally, after doing certain in game actions; as the result of converting from Decimal to Integer, all the decimal values are truncated, hence resulting in rounding symptoms
The following game actions I can confirm involve this decimal to Integer truncation:
Rune Temple - visiting a particular toon
Fight pit, Coli, War, Temple - the toon used are affected
Thank you for your attention and hope a solution will be found soon