@d-healey Ok got it.

This is very odd. I compile your test project and it works fine both as Stereo and M>S.

I compiled my project with the same settings as your test. Support Mono FX flag and HI_SUPPORT_MONO_TO_STEREO=1 option.

When I do AUVAL I even specifically see this, which to my understanding means it supports 1 in 2 out and 2 in 2 out:

Reported Channel Capabilities (explicit):
      [1, 2]  [2, 2]  

But still the plugin will not show up in the inserts menu for mono tracks.

Is there some other aspect that could be stopping it from being allowed on a mono track? Possibly something with using hardcoded DSP modules?

@d-healey Got sidetracked with other stuff but I'm back to this one now.

Yes, definitely exporting as an FX plugin. I've tried everything in this thread and still unable to get m>s working.

You made a simple FX test plugin? Would you be able to send me that? I can try compiling on my end to see if it shows up properly here.

Bump? Anyone have any new info? I'm still experiencing this bug.

@Christoph-Hart thanks for tackling this issue so quickly!

Tested as working on my end.

@d-healey DM'd

@d-healey haha. I don't know why but that project fails AUval here. It won't even load. I even tried changing the 4 letter plugin code and it still fails.

I tried taking your code and putting it into my original test project and it compiles and loads fine but still doesn't work.

I've now gotten further confirmation from someone who is a long time Hise user that this has been a bug for a while and to complicate things further, sometimes it works and sometimes it doesn't. Some users have the issue, others don't.

I am not sure if it's possibly related to what version of Logic. I have one person who is on the latest version who says they don't have the bug. Another person says they do have the bug. I'm waiting to hear back what version of Logic that second tester is running.

@d-healey

HiseSnippet 1262.3ocsVEtaaaCDlxIZa1sacEX+dPv+xYvvyR1I1tCa0wI1aFMt0HNsaCECEzRz1bQhTPhJItc4e6gZ.6AXOG6MXuAaGEksjbbV6BV0OrAui2ce7i2c7FGvsIgg7.jVoyV5SPZ2WexRlXwQKvTFZ3wRAmvmSsMNiDJP8V5iCCINHMsc9V4NzJtKJ96udbOrKlYSREgPufSsImP8nhToi69Dpq6.rC4LpWlc2r6PaN6HtKOBPyN50Q9X6ywyIOEK2VAcz2gCWfz9BcqYSssl0pQayNlcZ0rio49sm1rtksy9cZz3fFNyrZiOnMXzGz2gJ3ASDXAIDosaOtyxIK3WxTA3EzP5TWhbgIZBDYk3AbWG4QTJEczBpqy3UzTHB7x3TRaGEo8Y5inNz0xSIuOMVgQpEYIPsB4g2N4fmYV3UOC71Bjzx.ocUP5g5SrCn9hTMR7bO8gLAIXFFtmxBE0dQE9CM8i3vNXhZd3yICBfEqsnxA0qW0.9YuupTo.xbiYTWhwWaL.9axxPAwq1bhHl8BpjQ3g99GiE38jZiwtTWkxOOjD.LCIjHB+RY1U7Ol07iEUVFDJykxHFyhX1BJmYvY8hDBNyTBx.taEatmOmAvspwEX2HxdkdSohkJ1mMGrqlKG6HihJHUjvE750fiWcHkHZkKpTNw4k2qVnTdbHNB65NERDqrYrk3KCvdJWPdFqhB.WWxXSUylsUcINyEXrsoVVhD7uYXEVj2TRPtiOrQHMHetk9smakM02VwKY1HmMjQEOymvtsBBTBYJyCSPErUQbV3mjjENwkBIEHJjr8g5OgwmZhhAb1lEnmOTllrxMfGgn3SBDT4AP6XxEPyDUxcQ8iIgmK39PfVe+AsvxGT08UbPKpmb4gtZcH69ycWlF+uoqfbkP0tC6D2syDEhufLjoReTDzkTGAzDRW6WzPnED57EB4pOG7.ggAFUVueBAGjzhgFNh6AfCGrbE+khW82JIcUV.tLayRnxxeB80qXvt+4q+0Gm022SjzYR46APsffxleFTCDGgGnmUTtH8iYijS20G4eK2QtJrZ57U8quudSylM5zxpw9VHJT0mQgU6VGzwpkkYFEVJ5I4hVcq9.cES2KfeIT0hhyFJ76EzeSICixxbxIv8g5hr7iLDAQjpqzz+JeLKDJMBOLDhPjmbGyvtgoaQ0XZ6lKKQCugOgJH01yoJULTTK6T8HCy5qM5PGmsGhSg7CuaA8GSbIhaQ2DHYxdQObvlJFfufG.Lp7Yyr5FD45NFKVrReXNlH4.MDHKGROd.PI4z+zHOE+IMyJVjZ82KSCNExX3fhWBxMLpWqwFeU+OJGD+Sww3DZn3v.BdMklDgpa6u0VoP1o7KGicbfT42U6Vyo83QLG4I8kJEi3AIWCapIM0aSMq34ansz0vzN23gYXj.tSjKVjeNA4zTIJfr3bONKe.FttDKyNs0+aCO7tBwGpOlJrWrcLVXKXDZj+9.iIib8w58mMiXKRA3t5C9g2OyWgNkGI6TNBKBnPiRcnHYBzDyl.QmwHtxGX0JHeJTsttbsjAlPXNwK9a3KQoobsVhRyUJQdX6.9qrUOfJGp6ihk.XhEO.bQ8Qx0Fa4kSO3MmWYam2U2vPq6pgMtqF17tZ392UCO3tZXq6pgse6FJGI3vHA2SU1fPiF2O9sMMs9wyLDmsh9Gfh5DmO

This one is with the object, the snippet in my first post is with it trying to load from a relative path.

@d-healey I've tried the AU in plugin doc, bluecat patchwork and ableton

@d-healey negative. I had high hopes this would be it. But same result.

reg file = FileSystem.getFolder(FileSystem.AppData).getChildFile("User Presets/Test/Test1.preset");

inline function onButton1Control(component, value)
{
	
	Engine.loadUserPreset(file);
};

Content.getComponent("Button1").setControlCallback(onButton1Control);

This also doesn't work in Logic. Again, seems to work everywhere else.

It seems like Engine.loadUserPreset() is broken in Logic. In every other daw and format this works but in Logic it doesn't do anything.

Been going a little nuts on this one.

HiseSnippet 1301.3ocsVsraabCEkirG2ZkzllhrpqF3UxEFt5gel.TaKKqTgX4HX4j1Bih.pgbjHzLjBjbrshqAxh9AzujBz0cQ21ei9Gzcco6kyLRZjrheHfNKj88EuGd4gWdaHEtTkRHQVYOoeOJx5w1M6y0c1uClwQ0pXTbnnMy04DpRiJ2uGVonDjk0buz3g0hyih99mcJi8wbW5HUHzaELW5gr.ldj1F69JlueULgdBKHk2qsaMWAeeguHDPyb14Q8vtcwsoGgMtkwF8cXUGj0WaWzqkaQuMKsUgsKr8lqscgBquUq0xWzkr91kJsQIhWwsvarEDzBGPXZgroFqoJXQKKH8a1QbNONAukoXs7oFgBnlPliUi1uCymzXPoQgPVy2XTgZt3B0yrqyHrg5GUv9hHCNihHcQyJysAoBO.HYkBRyGComZ2zUx5oGYwfmGYWiqoROLb1jFJw9hxDXYuu.7fqWM.2kVUBBCiH2F4yuhC7yxuHaVF2mwoNdgbWMSvcD7xgZsfWvDuT3myUDzSvgUZEmyv9gzkydY1EOf2FhZUeAl7FEU1PRUTctkL7ouw7SgU6EoZIHEWAYY.XZS06OX8xsTRlVZ4UUF8Q4aerueKfjjaRfr7KRgwiDZ5q44hvR1qx5LoIOuoZKYo7oxoZ1Pdk2Vf43gAsnxzUBiivg03LfEteL.23pRJGE7Zbl908nIxUE9DyIq4+uIeAkTVMLmDDBtpi3MedBuooOiPkHFrHeh8q3hVEPQfO8UZzapUAqwCVFXEgrziJ0LylwpB8L3JeLcbQ6JTUWsnGjngmjPilwSZ7IWTRWzN4XDcQ5T1ejvOtqldArFekcEAU4n6vTNmKjccXbmn1T6fT3yn03wrLCM+bFQCsMrs9KH9NTV6NZiDAjnbLToM2VOjhkbi2LUcQ..SrDxpUFTJb+36rXkB0e6t8S2ZSo6aNRWHxQT.iP7oMDJlgxjpG5epzzdMYuOphe4y9sW92u+W1IHcaVDJ.eQ5ttpPOO1EQ8G8X9AJMfsZAPaSj0WZC22bHTObnu1Q0EVG39aWJ4DQj+o2bORmzTKdyUEtspY71mv.Xa1hOwNspza0OzM0V8Cmt6v58OaktduAH0p8f16Kt.37+ZhfooAiz96W+qWOt1hING8kv3hoWOwN9PtrTbNzWAEQKy7GYruLqiyRlKJMApPLiZom6nkgzUFX4fK5g4Jn3q1SA4ILv3gG1WMxknqSxoGtoug5FqIbsN18wLMRMzowzl64NExOLn8HjomhiAxYvGA8Un9T8GwVSfI61oLVNogp3yDRntZdkMsspg99Mv5NCrqFqRjrgpAEKBsrPBkjwreTXPb8yDVwHUwxeugFbLvXDfgSA8NN4WszDeq7.0Cp+onbbHSo2SRwCKoIYXko8mgQEiriEm2.SH.U99F2vZZYQHmX1omFantPlbLLokQTuIsLnNeCqYuBFN5FuoCSSHHg9X83iXXF9JwfoER520MucCGW59oaS7.l6H+sN2w8EhO0tAS61Y5XLyTvH7hx+GXLYZsOy9.OOpqdD.m2t5OLqilcGo+XQnoSYcLzLFZTZCWRZBsxboP14bpuxzPLioeVrbdiroBzjxIQBWCeIFKXjsRLVXfQ3Y.Wo3ctwujalG7Siz.XhGMu7h10MxNS4Ib34G16bcGeotQfEm0.KMqAt1rF35yZfaLqAt4rF3V2cfl4Q1KTKBhu1fP0abPzaaVVGDMvRDaE8efffMCF

Is there a fix for this in 2025?

@clevername27 link? would love to give it a try

@d-healey correct

I just tried a fresh new project to make sure nothing else was messing things up.

Support Mono FX ON, Force Stereo left alone so it's default off. Added HI_SUPPORT_MONO_TO_STEREO=1 to Extra Definitions OSX. Compiled AU in Hise. No AU Cache to worry about because it's a new plugin.

The plugin only shows in the Logic insert menu on stereo tracks as Pluginame > Stereo

Still no mono > stereo working here.

@orange I've been deleting the com.apple.audiounits.cache in user library. I'm always unsure if I also need to reboot after that.

@d-healey AAX windows?

Unfortunately I still can't get it to show up as m > s.

Ive tried many combinations but the last one that still didn't work is:

Support Mono FX [checked]
Force Stereo [unchecked]

HI_SUPPORT_MONO_TO_STEREO=1
added to Windows and Mac Extra Definitions fields

Forget my comment about compiling outside of Hise, I can't even get it to work leaving that part out and compiling normally.

It's a real pain doing this over and over having to clear out the AU cache every time. Logic really kinda sucks for development.

@d-healey it's my understanding that logic and pro tools support mono to stereo where a mono track becomes a stereo track at the insert point where the user inserts an m>s plugin.

this plugin does not make sense to run as mono > mono.

I don't want mono > mono. Only mono > stereo and stereo > stereo.

I definitely saw something somewhere saying the way to enable m > s was with the mono input and force stereo output. But I'll try without force stereo!