I'm using a standard table configuration with the green + to add a new row. I have two columns: Company Name, and CreateDateTime. I then just click Save and the row is there, minus the value I entered for CreateDatetime. If I refresh the page the new CreateDateTime value now appears.
I've seen the same behavior where I have several more fields being entered. All appear after the save except the datetime ones. BTW, this is on the Skuid Platform.