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Use this when co-op feels wrong after an update and the version may not be the only problem.

Co-op & Server

Version and patch match

Use this when co-op feels wrong after an update and the version may not be the only problem.

Shared saves can feel broken simply because one player is on a different version or the old assumptions now belong to an older patch.

What to check

Keep the retest short and tied to one real failure.

Compare the current version first.
Reopen the patch changes page if needed.
Stop when the shared baseline is clear again.

Why this hub exists

The hub works best when it explains the maintenance reason before it starts routing you onward.

What this hub is for

Shared saves can feel broken simply because one player is on a different version or the old assumptions now belong to an older patch.

Current watch

This hub stays focused on the specific co-op & server question that still needs one focused retest.

When to leave

Once the current failure is clear, move to Patch Changes instead of staying on the hub.

Best next pages

Open the next page that owns the current failure.

Patch Changes/patch-changesReturning-player checklist/updates/core-keeper-update-returning-player-checklistCo-op hub/co-op-server

FAQ

Short answers before you open another tab.

What if the version matches but it still feels wrong?

Then the issue may be shared-save flow or base support.

Why check patch changes here?

Because the version context can make old co-op habits feel stale.