XR15 Remote Pairing with Bose 900 Sound Bar Issues

Hello, Currently using a Bose 900 SB with X1 (Arris XG1v4) so I setup the XR15 remote with using Power and volume for my Sony tv (2019 A9G) and then setup Audio system choosing BOSE. The problem is whenever I try to power off with XR15 remote TV stay on or goes off and powers back on or goes back to TV speakers. Now when I don't setup the Audio with BOSE it powers off fine with comcast remote but this make me use the volume control coming from TV screen and not sound bar volume Lights. Not a big deal. So Bose has a List of CEC Options to choose from and I tried them all and even the Shut Off CEC option and none of them seem to work with XR15 comcast remote. If anyone out there has the same Bose 900 SB can you tell me what CEC option you are using with a Sony TV. Thanks

https://www.boseapac.com/en_in/support/articles/HC1337/productCodes/bose_smart_soundbar_900/article.html