Looked on the onboard from Mikkelsen from SS11 where he got the issues.

18s into the stage he has first massive oversteer on corner exit (it's like 3rd shaper corner). 35s in he starts complaining loud that the car is behaving very strange.
Quite weird that a driveshaft/diff lasts 18s of the first stage seemingly without any big impact.

On shakedown he got gearbox/diff issue after 1 pass and I believe this is the same car that lost 2nd gear in first stage after service in Sardinia.