Muhamad Aliff wrote on Dec 31^st, 2014 at 3:11pm:

anybody try to reduce special effect detail to medium? they said that fix the effect in fsx steam,

Nice one! Turning the Special Effects Detail slider to Medium got the Strobe lights and the Engine Smoke working on the L-1011! Thanks a million.  [smiley=thumbsup.gif]

I'll have to retest the other aircraft to see if it helps with them too. If it works for one, I think it should work for the others. ;)