I am wondering what your mIRC configuration is / how you choose to run mIRC...

I always install mirc to %programfiles% and mirc.ini sits in %appdata%\mIRC. If I need another environment, I create a shortcut with the -r parameter: "c:\program files (x86)\mirc\mirc.exe -r%appdata%\env1"

Do you use mirc.exe in the same folder as mirc.ini? Do you have multiple mirc.exe's in separate folders?

What is your configuration?

GNU Terry Pratchett