So whenever i make my own .rfm file for setting the safety cars and other parameters for a series, I put it in the MASTEMP folder with the default one and a few others. So whenever i go and make a new mod for the next round the file is missing and i have to put it back in the folder and select it for the mod again. Super annoying
Putting stuff in a temp folder probably isn't a good idea. I usually use my own folder for editing rfm files, then add the files from there to package into a .mas within the mas tool. Then open that MAS when creating the series.
That is why it's called a masTEMP save your rfm template backups elsewhere. You can load a custom rfm from anywhere on your computer btw.