I'm helping a colleague build a flow using "when a new email arrives in a shared mailbox (V2)".

We have a long list of emails to put the "From" field (we only want this to run for certain senders), but are not having any luck with adding emails as a comma separated list. We have tried all of the following formats (ignore the links, the forum is auto-adding that, we're pasting in from notepad):
We can paste the values into the flow, however upon saving, leaving, and clicking edit again, the field is blanked out. We're trying to avoid having to type in part of the email, wait for the filter, and click to select the user.
This seems like it should be straightforward... what are we missing? Is there some hotkey or final thing to press after pasting in the semicolon separated list to get it to parse all of these?