Mynetwor_style Error

| SYSTEM INFORMATION||

Ubuntu 24.
webmin 2.202

Hello.
I Have installed postfix using webmin … web interface was the only reason for me to install webmin … however, in General Option section , when ever, I do any changes and try to save I get the following error
postfix: fatal: bad string length 0 < 1: mynetworks_style =
myin.cf dose not contain mynetworks_style. however, If i add this to the main.cf , error disappears and i can save . but main.cf end up looking like following
mynetwork_style=mynetwork_style= ( double entry) .
I looked up the net and came cross this issue posted on 2017 and fix for this should have been added . however, I am facing this issue and I don’t know how i can correct it .

Thanks.