I tried it with the same plugins in Ardour 9.2.18, and there the plugins behave normally. As I said, simply take 2-3 tracks, whether audio or MIDI, activate a couple of plugins sequentially per track, then select presets or save them and reopen the plugin interfaces on different tracks. Everything works perfectly in Ardour, and the plugin interfaces display everything and react visually to changes immediately. In Qtractor, the problems described above occur.
I tried it with the same plugins in Ardour 9.2.18, and there the plugins behave normally. As I said, simply take 2-3 tracks, whether audio or MIDI, activate a couple of plugins sequentially per track, then select presets or save them and reopen the plugin interfaces on different tracks. Everything works perfectly in Ardour, and the plugin interfaces display everything and react visually to changes immediately. In Qtractor, the problems described above occur.