Thank you very much for helping me activate the legacy mode – it works perfectly now. Your plugin is extremely helpful for publishing our digital collections of scanned archival images, and we rely on it every day.
There is only one remaining issue: the plugin tends to “die” when importing a folder that contains a very large number of images. If possible, I would be very grateful if the developers could consider improving the import process in future updates, so that large collections can be handled more reliably.