I've migrated 4000+ K2 items to content. After migration I noticed the images were missing. I checked the server and found that only the original image files from K2's items/src folder were copied. Since I clean this folder regularly (this K2 folder can take up a huge amount of space) , only a few images were copied. But even the files that do exist, are not added to the articles.
I was hoping the migration tool would look at the items/cache folder and copy all files there, in all sizes, and then add the XL version to the migrated article. (Or even better: add the XL version to the full text and the M version to the intro text)
Why are the images missing?
Further I've noticed that of the k2 items that have a SIG gallery, the gallery files and folders are copied. In the attributes of the article there's some reference to jagallery and these copied files. But I can't see these attributes when editing an article. Apparently you need some specific gallery extension to use these migrated galleries? How can I safely clean up these unwanted attributes in the database, without going through 600 articles?