Since navigraph has accepted that the there is a bug makeing the stall horn silent (a bug that come and go is and only in ppl traning (stall horn work perfect in free flight) The lesson 5 become very difficult pass (for many in this forum). It is also unrealistic ith this bug.
while we are waiting for a fix, could there be a temporary walkaround if developers made it possible to take one lesson with out passing the previous?
Its an Asobo/MS issue and not a Navigraph issue so we’re more or less stuck until such a time that MS addresses this. We were hoping that the SU4 release would have addressed but unfortunately it seems not the case.
It is a rather difficult without the stall warning, however looking back to my days of flight training, sometimes you’ll be in aircraft that don’t have a functioning warning system. I remember one instructor carried around a fairly hefty clipboard just so she could whack you in the chest if you don’t pay enough attention 
I suppose until such a time that MS address this, its a missing feature 
, though with the anecdote there, you could take it as something that happens in the real world too!
gordonoc I understand that you are pilot in real life; so was I years ago until a car accident set a stop to my flying about 15 years ago. the lack of feeling of the movement i 3 D inside the cockpit is impossible for a simulator to replicate, triming and stall exersices are therefore more edifficult in the sim than in a real cockpit, My flightinstructor use to say if you can take off and land and walk out off the plane you passed, if new student pilot can take a setat in the cockpit you did things right.