Spawn Rate Change for Alpahs

Hey together,

i am new to Ark modding and was trying to do a little mod for our server, that increeses the spawn rate of alphas a bit.
I’ve ceated a base mod by the guide in the first minutes of ADK New Structure and Beginners Setup - YouTube

Then i edited the Global NPCRandom Spawn Class Weights and added the MegaRex_Character_BP and changed the weights to 5 5 and 90.
After compiling and testing it ingame however there is no change in the spawn. What am i doing wrong? (I am using SuperStructures Transmitter to scan the map for Dinos).



I hope someone can help me.

Thanks
Sven