You don't need both Midi clock and Midi Timecode being sent at once. Its usually one or the other. In this case its Midi clock thats required looking at the Minilogue manual. Enabling MIDI Clock Start sends MIDI Clock Start signals to your Instrument.

Not sure how this (Midi Clock Start) will react with your Minilogue. I suggest try with either checked or unchecked and see what works best. For example if I want to sync the rhythmic loops in my Yamaha Motif Rack to Studio One it does not need to be checked for that case. But it may be required to restart an external sequencer in the right spot each time.

In the Instrument settings I generally don't have anything set for RECEIVE FROM either. (eg set to NONE) It is not really necessary. If you have got midi connected both ways that might create some issues if the Minilogue is sending midi data, which it may. That is required for the controller only.

Minilogue is a great instrument!

I have it connected both ways, because I wanted to use those keys as a secondary midi keyboard from time to time. My friend told me, that his Minilogue, the silver one, is indeed sending something back... hmmm.

Well anyway, I'll try to mess around with it some more. I switched off the Timecode yesterday, but that didn't help. I'll try to disconnect midi out on minilogue and see.

I have emailed BoBeats from YouTube, because he has both the original and XD and he told me to email Korg, which I really don't want to do, as I see it a waste of time.

In your external devices area you should have two things setup for the Korg Minilogue. The first one is the keyboard. (the icon that looks like a keyboard) This represents the Minilogue sending midi data into Studio One. It should have RECEIVE FROM set to the source eg Pro 14 MIDI. SEND TO is usually set to NONE here.

The second thing is an instrument. (the icon that has a slider and two little knobs on it) This represents the Minilogue as an instrument receiving MIdi data from Studio One. eg a sound generator. SEND TO is set to Pro14 Midi here and RECEIVE FROM is set to NONE.

I am thinking you may believe you only need one of these things that cover both operations but you need both of these things to cover both functions.

Don't forget too that in order for the Minilogue to lock to Studio One it will also be need to be set for external sync or it to receive and lock to the incoming midi clock.