After nearly 9 month of missed time mark and no solution on the forum, you can find my thread here I found one today, simply by ignoring this line from the GPS post-processing guide on the Emlid docs :
If your raw logs from base and rover are saved in .ubx format you should convert them to RINEX. If you already have RINEX logs from the receivers you can skip this step.
Using the RINEX directly from today’s flight, 5 missed time mark, but converting the UBX to RINEX and I magically have all my marks.
It’s really a shame, all this time lost modifying my drone , buying stuff to improve it, countless test for nothing, with my boss very mad a me, nearly losing my job. all that because of a software issue…