This looks like the problem on 02.06 except there was no X10 Effect in that mix. Effect2 is turning on a Scene (which is consistent with what was failing on 02.06) with no trace entry indicating the Action was marked active after all the Scene processing completed. I am running 02.06.12 and will test this scenario on that image to see if it fails on the latest image.
Just to confirm what I get from the trace the Scene is Unit/Group 8 with two devices ….
12.C4.86 is turned on to Bright level 0xCC – following Query confirms device turned on at that level
14.66.29 is turned on to Bright level 0xFF – following Query confirms device turned on at that level
The OFF Action turns both the devices Off.