@xXPatrickStarXx thank you for the bug report! I will investigate the buildable black bar. The animation not playing while hacking is intended because it relies on the gsc function setlowready which doesn’t exist on BO2 ZM as supported by the absence of its calls in the vanilla BO2 ZM scripts and as supported by the BO2 DLC5 Moon footage where the animation doesn’t play, thus it won’t be fixed. Certain sounds being quiet is a known issue, but I doubt I’ll be able to solve it as it’s a complete mystery to me. My guess is it might be something to do with either the tools used or the game itself. All I can say is don’t expect it to be fixed. I’ll need more information or footage regarding the sound not stopping.
Update
Replicated the non-stopping sound. Couldn’t replicate buildable black bar, need video footage or more information.
Update2
Made the hacking sound behave similar BO1 and BO3 where if the sound gets bugged, it’ll get fixed upon starting another hack.