Yes, the reason it was found is because XIM NEXUS has more verification checks in it compared to XIM APEX. So, the bug still occurred on XIM APEX but was never surfaced. Basically the bug is such that sometimes when you turn, at certain turn angles, you'd get stutter. We did a check and about 15 other games were affected too -- but, most of them are really old games on X360. GTAV was the only one on X1. On PS4, FarCry 4. We will get this all updated -- again, thank you for reporting!