[siliciferous]

 Try adding this to advanced settings:

Code:

<advancedsettings>
  <videoextensions>
    <remove>.bin|.img|.iso|.zip</remove>
  </videoextensions>
  <musicextensions>
    <remove>.cue|.zip</remove>
  </musicextensions>
  <pictureextensions>
    <remove>.zip</remove>
  </pictureextensions>
</advancedsettings>

garbear, this is precisely what I was looking for! When I attempted to try to open a .CUE file of a PS1 game after upgrading to any mainline beta build past your last Retroplayer build (which was Leia beta3), my screen would flicker black for a split second and Kodi would appear to do nothing - no prompt to install a compatible emulator from the binary repo, nor would it do anything if I manually installed Beetle PSX from the Kodi repo before attempting to launch the game. My debug log would show entries similar to the following:

Code:

18:05:05.079 T:8496   ERROR: Previous line repeats 5 times.
18:05:05.079 T:8496 WARNING: Repository teeedubb's repo uses plain HTTP for add-on downloads - this is insecure and will make your Kodi installation vulnerable to attacks if enabled!
18:05:09.296 T:5260 WARNING: Previous line repeats 1 times.
18:05:09.296 T:5260   ERROR: CDVDDemuxFFmpeg::Open - error probing input format, D:\perfectly_legal\console_games\sorted_psx\Battle Arena Toshinden 2 (USA)\Battle Arena Toshinden 2 (USA).cue
18:05:09.297 T:5260   ERROR: VideoPlayerCodec::Init: Error creating demuxer
18:05:09.297 T:5260   ERROR: CAudioDecoder: Unable to Init Codec while loading file D:\perfectly_legal\console_games\sorted_psx\Battle Arena Toshinden 2 (USA)\Battle Arena Toshinden 2 (USA).cue
18:05:09.297 T:5260 WARNING: PAPlayer::QueueNextFileEx - Failed to create the decoder

It took much longer than I'm willing to admit (haha) for me to realize that Kodi was trying to play the cuesheet as if it were a standard media CD or DVD track, so once I understood that I needed to override that detection I immediately noticed that what you posted in this thread would probably help. So I went ahead and created advancedsettings.xml (thanks to the Wiki I got the location correct on the first attempt https://kodi.wiki/view/Advancedsettings.xml) in my Kodi userdata folder, and trimmed your config snippet down to what I personally needed--

Code:

<advancedsettings>
  <videoextensions>
    <remove>.bin</remove>
  </videoextensions>
  <musicextensions>
    <remove>.cue|.zip</remove>
  </musicextensions>
</advancedsettings>

--and that did the trick! Now I can finally upgrade past Beta3 and retain full functionality! Thank you again for all the work you do.

I have the exact same issue. Nothing starts when I try to open a PSX game. Weirdly enough beetle doesn't have a folder in userdata\addon_data like all the emulators have. So where exactly should I put the BIOS?

That sounds off, I think on first launch it should create a folder structure there - but you never know. Create a folder in your addon_data called "game.libretro.beetle-psx", make a "resources" folder inside of that, and finally make a "system" folder inside the resources folder. Your BIOS files - named exactly as noted in Libretro's docs here https://docs.libretro.com/library/beetle_psx/#bios belong in that system folder.