Old Castle

Sure, but that doesn't fix the issue. It's just a remedy :-)

Sure. I understand, and I appreciate that there are more than one way of doing this. I just agreed with OP that the icons could look better. Anyway, thanks for...

It worked for me.

It may be related, since now all Mixer x4/8/16 Stereo/Mono plugins crash Qtractor.

Ok... I don't understand here. So, some plugins from LSP have more audio inputs than audio outputs in qtractor. Why is that? Is the LSP desgin or a Qtractor limitation?

> @oldcastlehq Oh, I forgot to ask which format of plugins do you try to load in Qtractor? CLAP

So far, only over yabridge.

I tested two more plugins and they all worked here and in Ardour. So far, only this plugin does not work in Qtractor, but it works in Ardour.

I did close and open again and yesterday the issue was still there. I haven't tried yet with your 2nd attempt.

Yeah.  Sometimes works, other not. Noted.