This is a big concern (well, to me)
End of last week I got myself a stock Samsung Galaxy Tab S2 with 32G main memory and a 64G SD Card IE stuff on my tablet (BG, SOD, IWD, BG2 + NWN - not trying PST yet)
What I'd done, I found today, is that I'd put CEP (5.5G) on it as a test
I ran thru a rebuild without CEP and everything installs (I can prob fit PST in there too)
I then tried FTPing CEP to the SD again and watched what was happening via adb shell
It wasn't going to the SD - instead it was eating my remaining main memory so I killed the upload checking df -h noting the numbers. Sure enough as soon as I removed the test CEP I got 2G back
This is something that nwsync may be affected by as well, hence my concern.
I'll run some tests over the next few days to see IF I can get CEP on the SD via a custom app
As I say this is disturbing
In any testing scenario it is vital to get as close to test all scenarios - I sussed this one out in four days, why have BeamDog not found this?