@allyb123
Let's remove the custom Datacard.
Instead, 1. select the Form, 2. click Edit Fields at the top and 3. click Add Field.

and then 4. Select the SharePoint Field you want from the list of fields so the box is checked and 5. Click Add

Now just edit that generated datacard
6. for the Update property of this new hidden DataCard, you can put
TitleDataCard.Value & " - " HoursDataCard.Value
6b. You may want to use the above formula for the Default property of this Data Card as well.
7. for the DataField property, leave it alone - it's automatically correct now due to the first 5 steps.
8. If you want, put Visible to false and then resize the control so it's very small and not interactable by mistake to cover up other Data Cards, and move it off to the side somewhere - also send it to the very back as well in case in the tree view if you want so it can't be interacted with even if it's accidentally on top of another Data Card.
see if this works better @allyb123