Transcatheter closure of septal defects using specialized devices is a common procedure that has a high success rate. Embolization of Atrial septal defect devices is a known complication seen at a rate of 0.5%. We report a case of late ASD device occluder embolization immediately after brain MRI with clinical consequences and intraoperative evidence of right atrial wall thermal injury. To our knowledge Atrial septal occluder (ASO) device embolization post magnetic resonance imaging (MRI) was not reported before, although theoretically possible and that's why six to eight weeks post device implantation MRI is prohibited even with current MRI compatible devices.