I'm trying to add attachments to a Hosted Feature Layer (PDF's in this case, in a Web Map using Chrome) and they are failing to attach, which appears to be because of file size. I haven't found many threads to support/explain the presence an attachment size limit or file file size upload limit in ArcGIS Online. I can add several files that are 7mb each, but not one that is 23mb. Generally when i select the large file the file name stays beside the "Choose File" path spot and fails to attach. I managed to get one error (see below) while trying to add several attachments, but generally no error is provided with the fail. I placed the file in shorter path location and reduced file name size to see if that was a problem, but the issue still occurs.