Recreating aws_security_group for loadbalancer

I am using aws_security_group in my terraform codes.
terraform recreates aws_security_group for loadbalancer always, but I didn’t any changes in code.
This issue just happens for SG loadbalancer.
I have this bug in terraform 0.11 and 0.12
How I can fix it?

more info i needed so we can understand the situation. Are there multiple security groups? How are the SGs referenced with the LB. do you have any example code we could see?

thank you @gadgetmerc I fixed it.