Just installed these.
OK, not getting the "Error Creating Internal Instance" but now have other problems with Multi presets.
Load the 'Multi Preset Test' (or any previously saved multi preset).
'Add New Instance' just replaces what is in slot 1.
Clicking on slot 1 (to change what preset is there) does nothing.
Clicking on any slot except 1 removes multi altogether and takes things back to 1--Init.