IPsec Gateway is Always Defined Cluster Management IP

Hey, I'm trying to IPsec between sites in my lab to test CheckPointFW. I have management network 10.1.91.0/24 and managing CPs from this network. I defined cluster IP from this subnet and FWs have 2 WAN IP and the other site have also. When I check logs from the other site, it says phase1 trying to negotiate from the 10.1.91.27 (so cluster IP). But I want to specify it and tried somethings but nothing works.

https://preview.redd.it/qcilblkzua2e1.png?width=271&format=png&auto=webp&s=1c1048d832a98a6f2e2617a3e5ae8a95d3d93ba4

When I select Always use this IP address->Selected address from topology table->WAN1, its negotiating.

https://preview.redd.it/6lyf8g12va2e1.png?width=751&format=png&auto=webp&s=c09f31e669775f6497659f661e4e8e328d2e85cd

I defined for both interoperable devices WAN IP but doesn't work.

https://preview.redd.it/ew75j2xrva2e1.png?width=755&format=png&auto=webp&s=02f51e308195d412047c03de0bc7c2ba975134d9

https://preview.redd.it/x40s3wvrva2e1.png?width=755&format=png&auto=webp&s=222da1d9815060a95168581b17bc2634add517fe

https://preview.redd.it/y4x5d5zyva2e1.png?width=751&format=png&auto=webp&s=0700d6511d408cf100068f7f728a39bd89c7f1ae

https://preview.redd.it/4f7rs4zyva2e1.png?width=751&format=png&auto=webp&s=ea5c370c6a24612ef062cc4583503f22cba188f0