Hi,
I'm having the same issue as in this post (https://community.esri.com/t5/arcgis-for-excel-questions/arcgis-for-excel-map-doesn-t-display-when-workbook/m-p/1375190#M148).
On and off for the week I have been trying to get Excel for ArcGIS to work. Just when I think everything is great, the white screen of death happens.
Did anything ever get figured out for the white screen of death. In my case, Reset Map is grayed out, so that tip doesn't work in my case. The issue occurs in both online and app versions.
I also sporadically have an issue where data doesn't go from Excel back to hosted layer in Enterprise. Please let me know if there are tips for that.
Thanks,
Tim