Hi Philippe!
I am now trying the Metronome Master With Link together with Ableton Live with my latest Logelloop 6 version. When I have bpm 120 and record for 4 beats the loop should be 88200 samples long (since I am using 44100 as sample rate) but each time I record (with both Main Looper or Insert Looper) I get different lengths, either some number near 88080 OR some number near 88300. This means the loop will be slightly too short or too long and after a few rounds you can clearly hear it is no longer in sync with beat in Ableton Live. Is the sample length exactly 88200 on your computer? Thanks!