I add the mod to the modpack "Cursed Walking" and in the configs of the hordes mod i deactivated infections but when i add the mod Undead Nights i always get infected by zombies and the configs dont work anymore, could anyone help me?

I just did a fresh install of Cursed Walking and installed my mod Undead Nights on top of that. Enabling and Disabling infections in the hordes config works fine.
Please note: the mobs from my mod will not give you the infection.

I could not reproduce the problem.