Hi Neil,
This sounds like you’ve got both plugins in your plugin path. Cantabile tries to match plugins by ID and only resorts to the saved plugin path when the ID isn’t known.
If the plugin is in multiple locations Cantabile will just pick one - and it sounds like it’s being a bit dumb in picking the bridged one over the native one.
One thing you could try as a work around is if you have two folders in your VST path (one for x86 and one for x64) - try swapping their order and re-run the scan. The other thing you could try until I get to fixing this is just remove the 32-bit edition from your plugins.json file.
Failing all that, send me a copy of your plugins.json and I’ll check it out. Also perhaps a log file covering a full plugin scan.
Brad