@Anonymous
Well, as for the Default property...there is your issue. You don't have it set to anything. It needs to be the underlying record value for it to "retain".
Set the Default to : ThisItem.ChoicePN.Value
In your OnSuccess of the editform, the following formula:
Collect(yourOtherDataSourceName,
AddColumns(Filter(InputCollection, !IsBlank(MultiLineProblem)),
"yourMasterIDColumnName", Self.LastSubmit.ID
)
)
The above formula implies a couple of things:
1) That all of the items in your gallery (problem, solution, choice) must be completed and you have already accounted for this when adding to the collection - so, the above filter will get rid of any rows that don't have a problem filled in (i.e. your blank row).
2) That the names of your columns (MultiLineProblem, etc) in your collection match EXACTLY the real names of the columns in your list.
3) That the ChoicePN column in your list is a text column and not a Choices column
If any of the above implications are not correct, please let me know which and what is different.