Hi Raze, thanks for the response. So I think my issue is a bit unique because the controller I'm using is for iOS devices only, it has a lightning cable, so you can't plug it into a computer. Here is a link to the controller:
https://www.amazon.com/Rotor-Riot-Fortnite-Mobile-Controller/dp/B07J1J7D6ZHere is some more detailed info about this issue:
Hardware setup - iPhone 10XS Max, using Steam Link iOS app to stream Divinity OS2 from a Windows 10 PC. Controller mentioned previously.
Ways to reliably reproduce the issue:
1. Unplug the controller from the iPhone while playing, and plug it back in. Controller won't reconnect.
2. Switch out of Steam Link on the iPhone for like 5 minutes or so, and then go back. Steam Link will force you to connect to your PC again, and the controller won't reconnect to D:OS2.
3. Close Steam Link on the iPhone and restart it, same thing happens basically as number 2.
A few other notes on this...
1. This problem doesn't seem to exist with other games, and even when the controller won't reconnect to D:OS2, it still works for steam link...like I can get to the steam menu with the controller and select things. I just can't control anything in D:OS2.
2. If I use the Moonlight streaming app on my iPhone, this problem does not occur. I think Moonlight uses a different streaming tech (Nvidia GameStream) than Steam Link.)
So anyway, my thoughts are that this is likely an issue that occurs just with Steam Link and D:OS2. I kind of remember having a similar problem when I used Steam Link on my Nvidia Shield a while back. Let me know if you guys find anything...Steam Link is a great streaming experience, I would love to be able to use it on my iPhone with D:OS2.