Can't open/save banks for Synapse Hydra VST

I tried to open an FXB bank for Synapse Hydra but the open/save buttons in the Renoise UI are grayed out. Seems to work fine for Dune, and I don’t think this is a Hydra restriction…any ideas? Thanks.

Are you able to open up the FXB banks inside the plugin itself?
With a little luck you can also load the FXB from inside the plugin meanwhile.