[Fyren]

The EP1 config is not meant to work. There isn't currently support for using the new API with EP1 games, as far as I know, so you have to use the "old Metamod" config to have it use the old API.

[DJ Tsunami]

I'm pretty sure the EP1 config used core-legacy, but maybe I just changed that myself and forgot about it..

[Greyscale]

I had problems with this myself. I was using EP1 and metamod wouldn't attach. Old Metamod worked fine.