I have been very happy for this function - but I have a problem using it now it just crash
when I try to align to reference.
The size of the audio is maybe to 2*1 hours recordings I need to synchronize.
It's strange it stopped working - but because it stopped working in my 9.2 installation
I did a update to 9.3 just to see if it would be working but my result was the same.
I really don't know what is the reason for the kdenlive to crash.
I can set the audio referance, but as soon I try to align a track it starts working
and the it just exists out...
Any suggestions ?

I have tried cutting clips to smaller parts - but this does not solve my problem... it just crash both using 9.2 and 9.3 develop version
so am now forced to do it the manual way.
I have tried making both the the align to file and the set audio track smaller about 2 minutes - i did not work.
How smaller did you use?
It does not give my any bug message - and it have been working fine before with bigger files for me.