A new version of Item Assistant has just been released which should fix the major issues introduced with the "big AO server merge". It also cleans up and removes support for multiple dimensions and the player-shop monitor since these features are obsolete.
For those that play on both "live" and "test live" I recommend having two separate installs of AOIA, one for each dimension. Even with the old multi-dimensional support, it was never meant to support "test live" as one of the dimensions. (Due to, amongst other things, the difference in the AO Item database.)
I also want to give a big "THANK YOU!" to the AO community for all the feedback, testing and suggestions that just keep on coming in.
(For those that have been testing intermittent versions, this is essentially the same as v188.8.131.52.)