It is not recommended to make editorial changes in Lustre to clips with Timeline FX or transitions. Editing clips with Timeline FX or transitions may cause unexpected results when you open the sequence in Smoke/Flame.
To display the Smoke/Flame sequence for editing in Lustre, it is recommended to use the Colour/Timeline menu. Some editorial functions are locked in this menu to prevent any accidental editorial changes.
All editorial changes you make in Lustre are supported in Smoke/Flame.
See:
Timeline Menu for a complete list of supported editing operations in Lustre.