It is as designed and there is no issue if you notice difference between event number among report.
Analysis Workspace show events in the last touch model by default. In Adobe Analytics reports it is linear.
There difference in attribution is due to the attribution model of AA and Analysis Workspace
To see the same report use linear model or same touch , same touch more appropriate, in Analysis workspace.
Attribution IQ solves the problem of the inability to understand the impact of Customer Interactions.