I don’t know where the wrong for this case, but I suggest between AOI AREA nad AOI clip, please check again.
You can check AOI AREA and AOI clip area in snap desktop, and please make AOI clip area less than AOI AREA.
In SBAS_snap2stamps for cropping area need 2 steps than in snap2stamp only 1 step, maybe @dongyusen has any explanation about this?