Mikrotik VPN configuration with two different active DHCP clients

I have two DHCP clients on my router. One is 192.168.1.1/24 and the other is 192.168.137.1/24.
The problem that I have is I cannot figure out how to route VPN Users to specific network by getting IP from these DHCP clients based on VPN user. Router decides which DHCP client to use. Sometimes it picks in 192.168.1.xxx network and sometimes it picks 192.168.137.xxx network.

https://forum.mikrotik.com/viewtopic.php?p=908118