Can't change cores

Hi all, brand new here so sorry if this is wrong place for this. but i finally got everything set up. i got the GBA (mGBA) core loaded and did a test of my roms. everything works. but when i try to load playstation core (Beetle PSX HW) it does nothing. and it still says Game Boy Advance in the lower left corner on the main tab. any help would be appreciated.

ok, can you post a log of you trying to load the beetle-psx-hw core? If it’s having some sort of problem, it should print them to the log. See this doc for details on generating a log: https://docs.libretro.com/guides/generating-retroarch-logs/#generating-logs-via-menu