As far as 'some problems', firstly, there was a conflict or something w/ the PMDG 777 such that when I changed views in the VC, or even hit specific buttons, there would be a 1-2 second latency or pause in the video display, and also I happened to be at the gate at CYVR and it was snowing, and every time I changed views or hit another controller button the snowfall would stop for that 1-2 second pause.
This doesn't obviously have anything to do with GSX and surely not the update, you simply loaded a plane very heavy on performances, so it's normal there will be some lag when changing views, since the simulator is struggling trying to optimize memory and not loading too much stuff that might not be visible, in order to try to prevent you from crashing due to an OOM.
Nothing related to GSX, of course.
The second problem has to do with how FSCaptain worked w/ GSX in the new GSX de-icing entries.
I'm sorry, but I cannot help you here. I never seen this product and I'm not entirely sure what it does, or how it interacts with GSX. We are trying to add some additional control, using Simconnect, to 3rd party developers, this will hopefully help them improving the interaction with it.
So again if you will: if I reinstall the Hawaiian Airports is it possible to not touch GSX at all? I don't see a way to revert back to the former version of GSX, and I'm never sure how I should respond when prompted 'Are you sure you want to uninstall Coatl...the addon manager... etc.' It's really important to me to not mess up how FSCaptain and GSX work as I have a perfect routine for all aspects of their interactions and how I use them.
I'm sorry, but you can't. You should consider FSDT as being just a single product, GSX+sceneries, and the sceneries being downloaded separately only to save you from downloading something you might not need, but they are basically all part of the same system.
Case in point, we made an update of the deicing strategy, and affected both GSX, Zurich and O'Hare, that used to have some deicing vehicles. This way, users of such 9-years old product, got an update without any effort, for a scenery that might have been otherwise abandoned.