The readme of RST has always a very large list of fixed and known not-fixed issues. You could check if your problem is listed in the readme of 11.7 RST as being fixed. Then you know it is an issue in 11.2 or not
On my DZ68BC I am using RST with RAID mode enabled, but my primary SSD is running in non-raid. Enabling RAID in the BIOS might help to install RST 11.7
Are there any critical fixes in the 0160 BIOS that you need? Otherwise why not downgrade to 0156?. My experience with Intel BIOS updates is that things gets fixed but often/sometimes defects are also introduced in newer BIOS versions.
The README of RST is irrelevant because it is about the Windows RST driver, and the same problem occurs in Linux.
I am convinced this is not a system software issue, and I'm not too eager to install the newer drivers in the Windows partition due to reported instability in other threads.
Downgrading the BIOS could be a viable option. However, I would like to make this issue known to the board developers, and if the problem is indeed real, help towards the resolution.
Moreover, I am not very fond of BIOS and driver downgrades, and casual users should absolutely not have to worry about critical bugs in the newest drivers/firmware updates, when common advice is upgrade to latest for better stability.