YOUR NEXT STEP
Check Instagram Instants audience and undo
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Meta describes two audiences: Close Friends or followers you follow back. Each recipient can view an Instant once, and access expires after 24 hours. Your private archive can retain it for up to one year. Undo, or deleting it from that archive, can withdraw an unopened Instant; neither reverses a view that already happened.
This helps you choose a next step. Look for the reason for a restriction in the Instagram or Facebook notice.