We are aware that some users may get an error when they use the Consolidate Masters feature. It will produce an error dialog like the one below.
This problem occurs in very few files and we believe it is related to the inability to add comments to the file for an undocumented reason. While we continue to investigate whether it is possible to fix the problem there is a workaround.
You can still make use of the Consolidate Masters feature by unchecking the checkbox for Tag slides with a comment for easy review.
This means that the changes Slidewise makes to your file cannot be tracked and you will have to manually review the file.
If you experience this bug we would appreciate it if you could share the file with us so we can gain more information about the issue.