The 1.75 update brought several "under the hood" tweaks that made a world of difference:
Better integration with the VST 2.4 specification, ensuring that automation data and MIDI CC messages are passed accurately between the host and the plugin. How to Setup jBridge 1.75 Jbridge 1.75
Point your DAW to the new folder, and your old plugins will appear as if they were native 64-bit effects. The Verdict Jbridge 1.75
