Solution:
While enabling the backend transaction logs, it appears to be that a property (numberofPeriod) value is being parsed as "NaN" which makes the dashboard to restrict loading all other widgets.
Caused by:
com.fasterxml.jackson.databind.exc.InvalidFormatException:
Cannot deserialize value of type `int` from String "NaN": not a valid `int` value
at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 1376] (through reference chain:
com.snc.par.multivis.transform.model.VisProperties["numberOfPeriods"])
Next Steps:
1. open the above URL which has the list of dashboard widgets which may have similar issue.
2. modify the value for the property 'numberofPeriod' from "NaN" to 3 (You may refer the screenshots which I have attached)
3. This will resolve your issue and makes the dashboard load properly.
