I can give one example, right now I can not reach the top of the first tall building that is perfectly south of the Mulholland safehouse. It is on the block in Temple where two big streets have a crossing, it is GSF turf, on the south side of the 24-7 shop. A few minutes ago I could go a few meters above this building, but now I start to descend some floors before I reach the top. The maximum altitude is varying a lot, the ride is also a bit jerky sometimes, it's like the Jetpack motor get sudden bursts of increased performance (or maybe loss of performance).
I have tried three different controllers and I can rule out a button malfunction. A malfunction would also prevent me from giving full throttle in cars, and I don't have a problem with car performance. I have rebooted the PS2 and it didn't fix the issue.
The only cheat I used was for spawning the Jetpack, but that's how I always have acquired it. I never save after using codes. I don't have any mods or Action Replay or something like that.
I have never heard about a Jetpack bug/glitch and I didn't get any relevant search results. The closest I found was someone on PC using wrong keys.
Edited by OG Viking, 01 September 2013 - 10:15 AM.