HDR Changes not saved to DNG

With Camera Raw 13.3, after I merge raw files to make an HDR and it saves as a DNG - when that DNG is opened, none of the changes made to the basic panel automatically by Photoshop are saved automatically. This problem only occurs with the changes Photoshop makes on its own. If you move any of the sliders before saving, all the changes are saved. Has anyone else had this problem?