These are songs from other anime series composed by Shiro Sagisu that more than likely won't appear in the official release of the Bleach Thousand-Year Blood War OST, despite being played in the show.
![alt text](https://i.imgur.com/sygrqpt.png)
14. dyna tension and pinch from SSSS.DYNAZENON - Played at Episode 01 when Ichigo fought Asguiaro Ebern, and Episode 11 when Ichigo and Renji were fighting the Asauchi.
16 - Infiltrators from BERSERK (2016) - Played at the end of Episode 14, and during first half of Episode 23 (Mayuri vs Zombie Toshiro).