I just noted when looking up history, it is case sensitive - so if I look up "KI5QPY", it will show previous chat history, but searching "ki5qpy" returns nothing.
True. This bug was already detected and fixed for the upcoming version.
Yet - thank you for noticing and reporting.
Here is a list of what's coming in V6.4 and you can also see some other bug fixes
73s!
Irad