that does clear things up and i have a few questions...

1> after you set the change required variable to yes... if you update the item.. just add a comment and save it does the workflow kick off the wait for?

2> how is your workflow ever going to exit if the item doesn't require a change? it looks to me like those would be stuck waiting at the is a change required wait for forever.

if i am reading your intentions correctly the yes/no variable should ONLY be checked when the task for "create catalog task" is closed... if so you wont' need a wait for really just set the variable and close the task then put an if then after the task....

if this is NOT true and we don't want to only check if the first task is closed.. you will need to branch before that taks.. one branch going to the if then.. and the other going to the catalog task in parallel.