I don't know when it began happening (possibly with the latest maintenance release), but I am unable to get the presets of any of my PreSonus Studio One stock plug-ins (e.g. Pro EQ, Phaser, etc.) to load. It does not matter whether I select the presets from directly within the plug-ins themselves, or whether I drag over a preset from the browser to the effect rack. The presets refuse to load; only the default preset is loaded. It is nearly the same issue for the PreSonus stock virtual instruments (e.g. Mai Tai, Mojito, etc.); when selecting a preset, the preset names actually do change, but the patch is still the default patch.
Restarting Studio One does not clear up the problem.

