The old problem of folks not showing up on !online is back in 5.4. When inviting new folks to the organization they will not show up on the organization list. You have to physically remove them from the bot with !member del (or clear name out of the table) and then !member add for online to pick them up.
Also, for some reason, whois (or the cache) isn't updating. No error messages. I have to actually drop the whois table and restart the bot to capture updated character information.
These problems began with 0.5.2. Even with full fresh installs of the bot I get it.