There are a number of known limitations and issues in the current release of ArcGIS AllSource.
You can find more information about an issue by searching for the BUG number on the Technical Support website. Not all issues have been reported to Technical Support and may not have a BUG number.
Command search fails when help source is set to use Online help from the Internet.
Application crashes when opening a timeline using the Arabic language pack.
BUG-000146662 Links from a link chart displayed on a map are not honored when the map is exported.
BUG-000152526 The roads dataset with complex geometry never completes running in the Find Overlaps (Intelligence) tool.
BUG-000153740 The Classify Movement Events (Intelligence) geoprocessing tool fails due to projected coordinate systems.