Convert particle button missing

I’m trying to convert this particle system, but I think my convert button on the modifier tab is missing. Did it get moved in an update or something? What are some alternate ways I can convert the particle system?

You can only convert particle when they render as objects. In the particle render settings have to selected an object ? If not, you’ll have nothing to convert

This is how the particles are set up. I have it selected as a group. I switched to object and the convert button didn’t appear either. What else could I have done wrong?

This is what the particle system looks like. I chose group under the render tab. I have a group of rocks as my particles. I switched to object and chose only one of the rocks, but the convert button still doesn’t appear.