You have to redirect the emulated folder to some other particular folder like create a new folder and select it.Interesting. I didn't know about Storage Isolation, but this seems useful.
But, now it appears to be crashing consistently on launch or shortly after (within 2 mins), so it must be detecting the Storage Isolation app somehow. In the app, it says 1 PoGo folder is isolated, and when I tap View Isolated Storage, it seems to be correct. The actual is /storage/emulated/0/Android/data/com.nianticlabs.pokemongo/sdcard, and the "this app perceived" is /storage/emulated/0/. https://imgur.com/a/X5hwqvm
I noticed that there are still Niantic folders in /data/app and /data/data; am I supposed to delete those?
There's also the option to View File History in Storage Isolation, which might show me PoGo's read attempts. I don't mind paying for it but I also have no idea if that will work, seeing as it is not working right now.