Recently Installed Enhanced Search - Unassigned Shards

invalid@example.com (Grumpy Squid), Grumpy Squid
Mon, 17 Feb 2025 17:02:51 +0000
Enhanced Search support

Running both Xenforo 2.3.5 and Enhanced Search 2.3.5. We got it operational but how worried do I need to be about the following information:

From what I understand yellow health should be fine for Xenforo purposes but what about the Unassigned Shard?

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Second question regarding custom themes and the search suggestions that pop-up while typing. It all works on the Xenforo default theme but our custom themes it doesn't...