I've been looking at various forums for information on using Magma, as I just bought it.
One issue I saw frequently was Magma crashing (and the DAW) when changing presets.
Using Win10-64bit and Reaper with an empty project and one track:
1. I Load a Magma preset, wait and then change to a new preset.
Magma causes Reaper to crash.
2. I Load a preset, wait and replace the loaded Preset with the "Empty Preset" before loading new Preset
Nothing crashes, and the new Preset loads almost instantly.
I'm going to test this on my other DAWs as well. I hope it is helpful to others.
Boyd