problem with routers

hi,
good day,

I have 3 routers connected to the Mikrotik but the Mikrotik loads the balance on 2 routers only? photo attached. As in the photo, Mikrotik split the load on router 2 and 3 and ignored router 1 if I disable router 2, for example, Mikrotik will start load on router 1 I need the 3 routers to work equally please any advice?
Screenshot 2024-06-13 120509.png

Show your full configuration. Otherwise, nothing is clear and we don’t see how it’s configured

thanks for your reply.
please check the photo below for all the settings I have made, sorry I am still new to Mikrotik if you need any specific settings, please tell me.

/export file=config

and post here please. It would also be nice to see a network diagram to understand what is connected and how

Need to know the requirements.
a. PCC load balance or
b. wan1 priority, failover to wan2, failover to wan3
c. any users hard coded to go out WANX
d. any vpn like wireguard
e. any port forwarding to lan servers.

Knowing the requirements will ensure a proper config is built.