If you're trying to train a Personal Style and you're currently stuck on the uploading screen, please double check the following:
Try train your Style again with a smaller amount. We recommend using less than 16,000 images. If you continue to get stuck uploading, we suggest starting with an even lower amount.
If your catalog is stored on a network drive (NAS), it must first be copied onto your computer or an external drive.
If you're using a cloud based storage system such as iCloud or OneDrive, ensure that you have all the files related to your catalog downloaded to your computer.
If you've gone through the above steps and your Style is still stuck on the uploading screen, you should clear your cache and restart Narrative.
You can clear your cache by clicking Help > Troubleshooting > Delete App Cache
Please note, this will also reset your preferences so you might want to jump back into that menu and re-apply any preferences you had selected.
If you're experiencing any other issues or the article above hasn't resolved your issue, please contact support via the chat bubble in the bottom right corner.