In my usual ice mining system I see that the ice belt can be found in the D-scan, but when I warp there, there is no ice.
SO it would seem that either:
The ice belt location doesn’t despawn once it is depleted (which begs the question: will a new ice belt still spawn? Or is the system bugged so that currently no ice is spawning?)
The ice belts are completely borked, with the location itself spawning, but with no ice to mine.
Either way the agency window still shows that there is ice in system. It shows ice in a LOT of systems. I havent flown to any of them yet to check, but it would seem that something is wrong.
EDIT: Talking with other miners in local, this problem seems to exist everywhere. It seems ice belt locations are spawning EMPTY, and not going away.