Been having this issue where the guild chat history is not being properly fetched after I swap characters for the first time in a play session. The only messages that will appear in the guild’s community tab are those that were received after the character logged in.
After further observation, this appears to happen if the guild chat window is opened too soon after a subsequent logon in the client session. If I wait 1-2 minutes, the full history can usually display.
This is still happening as of today, but I found a workaround. Attempting to scroll the guild chat history in the guild pane will force a retrieve of history from the server and “resolve” the issue, at least for the current character.