BLE Stack 2.1.0 & TI-RTOS 2.15.00.17

Hello!

I use CC2640 as main controller in project. I've used BLE Stack v2.1.0 and TI-RTOS v2.13.00.06 and controller worked good.

Recently I found new update for TI-RTOS to version 2.15.00.17. I've installed it, applied changes according Migration document . My project compiled successfully, but when I downloaded image into controller I've got bricked controller which I can't read, write or erase (backdoor was off)

I can't understand why is it so. Is BLE stack conflicting with new TI-RTOS? Will be update for BLE stack which use new OS version? When?

Or which changes I need apply to stack?

Thank you.