I have a flying AI that works fine, unless you set its target to above 357 on the Z-axis. Anything below that and it works, and if it needs to go above that it will do so without issue, but if the target is above that distance it just won’t move.
Check if your code does not contain some range check after which your target just get ignored as it is considered “out of reach” so that’s why it won’t move. Other thing is if you using pathfinding, verify that that location can be accessed by query.