Litchi Hub Smart Export overwrites the preview image with the Litchi flight name, this is meant to help you find the flight. However since DJI Fly uses a cache for preview images (that we can’t clear), it can happen that DJI shows the old preview image still even after overwrite. The way to avoid this problem is by creating the dummy just before overwriting it (see step 2 in the guide at [GUIDE] How to use Litchi Hub with DJI Fly / SkyRover). If you do that, then the preview image will update to the Litchi Hub preview image correctly, plus the dummy will have been just created making it easy to find anyway since it’s the first one in the list in DJI Fly.