Unable to Clear Entire Conversation

In a specific Keybase team conversation, I am unable to clear the entire conversation for everyone.

The issue occurs when going to chat info and settings > settings > clear entire conversation > yes, clear for everyone. The conversation does not clear and I get the error message: Error Code 218 - timeout calling chat server in method chat.1.local.postDeleteHistoryByAge .

I am also unable to clear the conversation on iOS, and receive the message "an error occurred."

Other team conversations appear able to be cleared without issue.

This occurs on Keybase Mac version 6.0.1-20220609162338+0fc9feea3d and iOS version 6.01.

Reproduce the failure from Chat info and settings > settings > clear entire conversation, using the reported Mac and iOS versions. Start at the chat.1.local.postDeleteHistoryByAge path, compare it with a team conversation that clears successfully, and verify that clearing for everyone completes without the timeout or iOS error.

Written by the indexing model from the issue text.