Automation, couple fields don't copy

I am successfully running some automation's between apps. The set of data being copied is almost identical each time.

The first set of apps is where the info is inputted. It's then copied over to a single app where it is reviewed and "approved". Once approved it's then copied over to a third app.

However on this second copy to the third app there are 2 fields that aren't being copied over. They are time fields. A simple start time and end time. I can't figure out why. Any suggestions on something to look for?