This is how I did it...
Deleted all your empty "LightOne" empty movie clips in both projects.
Opened your reflexLightOne.fla.
Created a new empty clip, and named it "LightOne".
When back to the main timeline.
Right-click anywhere on the timeline.
Hit "Select All Frames". Then "Copy Frames".
Open the "LightOne" clip, select the first frame and right-click it, "Paste Frames".
You now have a movie clip, which is a copy of your main timeline.
Now open up your reflexStreak.fla, in which the original "LightOne" was deleted. Drag the new "LightOne" clip from the reflexLightOne Library onto the stage.
You now have a copy of that clip in the reflexStreak.fla.
You'll have to scale it down to fit in your eye and position it correctly.
To scale it down, in the "LightOne" clip in the reflexStreak.fla, add this to the first frame:
this._xscale = 25;
this._yscale = 25;
Finally you can put a stop action on frame 5 of your reflexStreak.fla, and everything should work fine.
Regards,