Are the 3 demons glitched

I have 236% str and over 600 atk.... without demons range is 188k clean, with 1 demon it goes to 189k, 2 demons it goes to 191k and 3 demons it goes to 193606. Still doesn't seem right because even getting 1 more on my noble mind on my cygnus adds like 1.3k to my range and that 4 atk from jett added almost 3k

i just checked, the demon pets, they work perfectly fine, and indeed do give 3, 5 and 7 attack that stack.