Custom outputs aren't being stored to process variable

I am having trouble with values saving to every custom output object. My write to data store activity inserts multiple rows. I am trying to use the saved entities id and a manual value to then write to a process variable.

Example:

These would be my activity's custom outputs saved into the process variable:
1. ac!StoredValues.id
2. today()

However, the output would look like:

{"john", "2020-06-11},  {"amy", null},  {"steve", null}  -- today() is only saved for the 1st object.

I tried wrapping today() function in a repeat, but it still gave the same outputs

1. ac!StoredValues.id
2. repeat(length(ac!StoredValues), today())

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