Loading Effect Preset crashes Wavelab

Insert Magic AB on a playback insert
Load 3 reference songs into Magic AB
Save Effect Preset (not bank)
Add another reference song
Save new preset
Try to load either preset through the Wavelab preset menu
Wavelab crashes every time

Presets load fine when saved in Cubase, and can be saved and loaded through Magic’s own preset system in Wavelab. It just seems to crash Wavelab when using Wavelab’s own preset system. (Curiously, Wavelab seems to save presets within the Wavelab app package itself rather than the system library, so does a Wavelab update extract them?)