Chatlog Issues While Multiboxing - Any Fix?

Hey folks,
For a long time I've just suffered with the fact that FFXI isn't built to support multiple game instances & the chatlog issues that result (log disappearing, or being duplicated across characters, etc.) but, since it's been a while, I thought I'd ask and see whether anyone has found a fix over the years I've been away (especially since multiboxing seems far more common now, too).

I've tried the 'Sandbox' plugin to no avail - it seems to periodically totally wipe the chatlog from each character, which is even worse - and know of XI-Util, but I don't think that has been up to date in a long time, right?

Does anyone know of a current addon or fix to isolate game instances/fix chatlog issues?

This has been a problem for years. Just gotta deal with it and re-log to fix.