PROBLEM
While using the Edit widget to edit a hosted feature service in ArcGIS Web AppBuilder, clicking the Undo button causes the application to stop responding and returns the following error.
Error: SEVERE <date>, <time> An error occurred. <hosted feature service name>.MapServer
This issue occurs if a feature dataset contains m-values, and is a known limitation. For example, when edits are performed on a hosted feature service accessed by a platform that does not support editing m-values, such as ArcGIS Online or Portal for ArcGIS.
There are two possible workarounds for this issue.
Article ID: 000018128
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