I wrote about this to support about a month ago but nothing happened since then. So here we go here.
Automating parameters in Flux plugins is strange and causes various problems down the line. Here are a few quirks I notcied:
On a Mac, Cubase 9, create an audio track.
Hook up some MIDI controller and assign a fader or a pot to that Eupre's morph slider. Enable automate button on the plugin gui.
Load two different presets in A and B slots.
Do not "touch" the morph slider with a mouse.
Move the fader/pot on the MIDI controller.
The morph slider moves but parameters don't change as expected in either graphics or processing.
Now grab the slider with a mouse and move it.
After that the controller fader/pot moves the slider and parameters change as expected.
What is also happening is that while automating morphing slider Cubase writes automation for that parameter only but when I move the slider with a mouse, and essentially force it to work, the plugin starts writing automation for all parameters.
Now if you replay the ection with automation, without touching a controller or a mouse, the plugin will actually start reading and re-writting that same automation every time!
That behaviour is probably just consuming of resources as it essentially only writes over what's already been written but the problem is with the BYPASS switches.
Flux plugins for some reason write two lanes of bypass, and they are not perfectly in sync every time and sometimes one would even continue writing long after the other stopped. That's something I found out in Trax and wrote support about but it never got solved.
After I noticed this strange behaviour of morphing slider I assume the two are connected.
The problem with automating Epure's morph slider is especially a problem when I use it inside Plogue Bidule chained with some other plugins since rendering simply ignores all automation of parameters.
Hope you manage to solve the way Flux plugins handle automation since I love the sound and features and would love to continue to love them.
All the best,