I got a snapshot in s3 from cluster A (7.11.x) and tried to restore it in cluster B (7.13.x) and noticed that indices in cold nodes e.g. index-data-2021.03 were restored as e.g. restored-shrink-index-data-2021.03 which was red (0 documents, 0 bytes).
What is the problem here and how can I overcome it to restore the index?
Their ILM policy is missing in the new server (I would assign a new one).
Thank you in advance for you answers