Recently I'm having issues with the append geoprocessing tool when I try to append data from a local GDB to a hosted feature layer. The append tool runs and says 'Append Completed' but the data is not there. I use the field map to reconcile field differences, I've unchecked optimize performance for feature services, I've unchecked preserve global IDs, I've made sure field lengths and types are the same, made sure spatial references are the same. Nothing works. Any thoughts?