I'm aware of the customer your referring to. We reconfigured the server for them to work with the update, The information they provided on the ubi forums is 1/2 correct. They have no access to change which .exe or config gets loaded and mistakenly assumed their fix corrected the problem. In reality we did a minor edit on the commandline to use the right variables and it worked fine.
The new .ini works just fine also. The old and new ones are pretty much the same, The only difference is the new config has notes next to each setting explaining what each does. If you take a close look you will see nothing has changed.