Midi Clock plugin doesn't work with Ableton Link sync mode

I’m using the pisound to synchronise a korg volca to software on my laptop and I’ve noticed that the x42 Midi Clock plugin doesn’t work when using the Ableton Link Sync Mode.

When it’s set to Internal I can start and stop the vocla easily (the plugin is set to Clock + Transport + Position and is using Host Sync). But when it’s set to Ableton Link the start/stop commands don’t work and tempo changes aren’t sent.

Any way around this or any other sync plugins available?