No, I get nothing at the model > strand level (nodes aren't showing) when I toggle. There is nothing. But in the sequencer House Preview, the element/model has an effect during that time period (a simple on with fade to off).
You can see in the attached screen shot...
the sequencer is paused when my elements are on... I screen captured the sequence area to show you the Models MedTree1 and 2. I also have Wreath_Pitch captured since that was also brought in on the data layer import and converted to effects. The medium tree 1 and 2 are the 2 taller trees behind the mini trees, but smaller than my mega/pixel tree.
The same thing for the 3 trees to the right side of the preview. A group of 3 trees. I think 2 were blue and 1 white. Same thing... effect but nothing in sequencer grid.