Hello! I’m having a problem with a subform in my application that suddenly started behaving strangely. There are four fields in the subform that are not working now.

1.       1.          Event Name is a text field that pulls from the master form in which the subform is embedded.
2.        Event Date is a date field that pulls from the master form in which the subform is embedded.
3.        Event Type is a dropdown that pulls from the master form in which the subform is embedded.
4.        Site ID is a numeric field that populates based on the selection made in the Site Name field, which is in the subform.

When a user creates all the subform entries at the same time as they are completing the master form, all work fine. But if the master form is saved and then reopened, none of the subform fields listed above work properly.

I have a similar setup in other forms in my application, and they all work fine. It is just this one that is suddenly broken. Can anyone offer any advice on how to fix this, please?