I've 'broken' my contrails - heeeelp;-)

[dougal]

No idea how, why or when, but I've noticed that NONE of my user aircraft have contrails anymore:-( AI traffic appears okay. I've tried replacing my contrail fx files from my backup, but that didn't help.

Any ideas?

[Palyarmerc]

Wouldn't have had a clue, but whilst trying to add AI craft and liveries for online flying recently I did notice the
AC_ICAO_40 program I was using has an 'activate contrails' button.
Maybe you need to re-run that if you have it