Hi guys!
I need a quick confirmation about how smart delays changing behave for users who are already inside the flow.
Context (today is Aug 19):
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The first smart delay is set to the morning of Aug 20 — this date was the same in the original flow and remains unchanged.
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All subsequent smart delays and messages have been updated to the new schedule for Sept 2 (texts and dates are edited in the same flow).
Questions:
For contacts who are already inside a smart delay (Aug 20 delay): will the engine use the updated date/time I saved in subsequent smart delays, or the date/time that existed when they first entered the flow?
And do I need to apply a “blocked” tag to stop the existing cohort as I was advised by support team? I’m really confused.

If there’s a best-practice here, I’d appreciate your recommendation. Thanks a lot!