I'm using Collector for ArcGIS and cannot post attachments to a feature stored on ArcGIS Online. The map was configured and posted through ArcGIS Pro. I made sure to enable attachments. Upon hitting "Submit", the app says it is sending updates, posting attachments, and the tells me that the update failed. I attempted to open another map and I was able to post the attachments normally. Any thoughts as to what is generating the error?