[Thomas Collier]

Here is my precomp with 3 “logos” in it:

Here is my main comp without collapse transformations on for the precomp, as you can see the bounding box is the size of the precomp:

Here is my main comp with collapse transformations on for the precomp, the bounding box has changed to the height of my tallest layer:

Here is the precomp with your sourceRectAtTime expression applied to the anchor point. Notice the anchor point is looking at the precomp size, even though collapse transformations is active.

[Thomas Collier]

Yes, I am having the same issue with your version of the expression. The anchor point is snapping to the bounding box of the layer without collapse transformations on. My question is, can I attach the anchor point to the bounding box of the layer with collapse transformations on.

[Thomas Collier]

Dan,

Thank you so much, it worked beautifully. This shows my 3 “logos” (the thicker bars) and the 3 “rulers” the thinner bars. I am able to swap them with master properties as I please.