The GPIO Event map register in version 2.15 (I have rc2 - the latest I could get) has a problem with the GPIO event settings when a 2.15 pjt is loaded.
Under the GPIO Event Map group (register 0x5c), there is a Mapped Event pulldown. This allows you to select an event that will happen for that GPIO, either an output or an input.
In version 2.15 you cannot set the MappedEvent to 'DISABLED' once it has been changed. It will always change to 'Output Enabled Without Event', another different option. I can get back to Disable if I load a 2.14 project into the 2.15 tool. I'm not sure what is happening here.
The HostInterface manual doesn't explain this register, so I can't find out what the bits should be for Disabled, but I suspect they are supposed to be 0s, and they aren't.
I downloaded the AppConfig tool again and reinstalled it, but it still has this problem.