sometimes the ivs show by the /ivs command aren't accurate
i catch few mew and when i check their ivs it gave me 0/31 on HP for a mew with 241 hp (lvl 70 with 0evs)
when i said this bug in the discord, i saw my mew with 241hp have now 220/241, 220 is for a mew 0 ivs lvl 70 (i never take them out of the pc except for the /ivs)
so i don't trust the ivs command anymore and i don't know if it's a pixelmon bug or a pixelextra bug
And i'm not alone, some people in my little serv say to me when they check on an external calculator their is some few errors on the /ivs
when i checked for the mew i just changed the sponge version from 3161 to 3477 i don't know if sponge can be the reason