A static route between instances EC2

hello guys! Could you explain me how I can get working the static route working between two of instance? My design looks like: One is ec2 ubuntu 20. The second is CHR. All is on private network - 10.10.1.0/24 Ec2 ubuntu is 10.10.1.10, CHR is 10.10.1.31. I have created the dummy interfaces on the EC2 ubuntu like dummy-1 with IP 10.55.0.1/24 I have crated a static route on CHR to 10.55.0.0/24 like next-hop 10.10.1.10 (on the CHR side). But looks like there is no direct connection between instance, all traffic walks over iGW, and no one static route works. Of course I have added a rule in security group to allow 10.55.0.0/24. Acl on the interfaces has allow all. Bit no ping from CHR to 10.55.0.1. How I can get it working???? help pls.