What binding is linked to these Items?
Do you have autoupdate=true or false? Based on the log it looks like autoupdate=false. That means that the command from openHAB is getting lost among the barrage of commands from openHAB to the devices so the light never changes and therefore the Item never changes. If this is the case, you need to spread out the commands to the Items so they don’t all occur within milliseconds of each other. See Design Pattern: Gate Keeper.