When you use an SQL transformation to read multiple records from a stored procedure, the data preview fails.

The Developer tool raises an error if you import a mapplet to the Model repository and the following conditions are true:

The mapplet that you import replaces a mapplet in the repository.
The mapplet in the repository reads a token set that the replacement mapplet does not read.
The two mapplets have the same configuration, including a Labeler transformation that reads the token set.

The Developer cannot open an object when there is a mismatch between the IDs of the local and the cached object. It returns the following error:

Duplicate object of ID

When you run a mapping by choosing

Window

Preferences

Run configurations

Mapping

, the Developer tool attempts to re-establish connections with all configured domains. Depending on the connection quality, this may result in dramatically slower performance. To work around this issue, delete unused domain configurations from the Developer tool.