After reboot old index are not seen

Hello team,

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):

opensearch 2.4

Describe the issue:
After issue on network i had to reboot cluster.
but after that i dont see old indices but only new, and these indices are in nodes/0/indices

i can see 12 indices
but i have 237 indices in nodes/0/indices
cluster of 3 nodes

Relevant Logs or Screenshots:
cluster green no error seen in logs