So I have the JK-B2A24S15P BMS, and am using it on 16x EVE 280AH cells configured in 2P8S 24V system. It is working in 8S configuration, new system build, running for about a month now. After installing the mobile app and connecting for the first time, it detected that cells didn't match with the pre-configured 16 cells but I was able to adjust down to 8 cells, and also adjusted few other parameters.
This JK-BMS is great in my opinion, I was able to top balance the newly installed pack just by using the integrated 2A balancer. So it works at 8S and I assume it's going to work also at 24S and everything in between. Hope this helps.