When a timeline is changed from Unlisted to Listed, or any other value, it can take up to a day for the system to react and send a note to support. After that, it can take some time for support to rebuild the tlrec.json file used to create the landing page timeline list. When editing a timeline, there should be an explanation that changing the value can take a while before the effect is seen.
When a timeline is changed from Unlisted to Listed, or any other value, it can take up to a day for the system to react and send a note to support. After that, it can take some time for support to rebuild the tlrec.json file used to create the landing page timeline list. When editing a timeline, there should be an explanation that changing the value can take a while before the effect is seen.