No it's not worth faffing about in Orion anymore. I've got other DAWs so it's time to move on. I just had a small developer tell me since Orion has been discontinued it's not even worth checking out issues.
Here's the message I get with AMT Plugins.
They work just fine in the other 3 DAWs on that system. I sent a support request to AMT but no response. Possibly because they don't see a need to spend time supporting a discontinued DAW either. I've had other plugins that can be resized in other DAWs not work in Orion and so on. I imagine these issues with new plugins will become more numerous as time goes on.
I still love Orion but I won't use it for composing anymore. It's still great as a "synth rack" to load up a bunch of synth plugins and layer them together just for playing.
If Synapse ever decides to take up development of Orion again I'll be first in line for testing but until then.......
Oh and I don't blame Synapse for their decision one bit. I would have done the same.