No problem. The official season three bug reporting thread is pinned under “suggestions and feedback.” This link should work.
https://forums.ultra-combo.com/t/official-ki-bug-reporting-thread-season-3/
Are you nearing capacity for the HDD? It sounds like a loading issue but I don’t know that KI is loadimg much off the HDD mid match. I have a Day 1 Xbox (phat, lol) and it runs KI no problem.