Spirit cost minion bug

Dear GGG, i have found a bug where it reduced my skeletal sniper army from 8 snipers to 6 snipers since i have originally had 10 before adding the Wolfpack gem which before the wolfpack i could use 10 snipers but somehow it reduced it even if mathematically the numbers should be 8 snipers and 4 wolves. Please if you can fix it in a short time, Thank you.