How come when i try to make proxies in Premiere Beta it tells me Media Encoder isnt installed

How come when i try to make proxies in Premiere Beta it tells me Media Encoder isnt installed when it is. I not only have media encoder installed but media encoder beta. I'm running Premiere Beta 23.6.0 (build 31)

I thought: fine if it wont let me make proxies automatically in Premiere Beta, I'm manually make the proxies. So I opened Media Encoder Beta and dragged the MXF into Encoder, and chose one of the premade proxy settings that Media Encoder provided. When it was done making the proxy, I went back into premiere, right clicked on the clip and chose attach proxy. And a warning came up that said "attach failure. error message: proxy media and full resolution media must have matching audio channels".  so the pro res proxy failed. then i tried H264. same thing. this is exhausting.