Ellipse Annotations Missing After Export and Training

Description:
I am annotating images using Label Studio with two shapes: rectangles and ellipses. After exporting the data and training the model, I noticed that the annotations for ellipses are missing, while the rectangle annotations are present.

Steps to Reproduce:
1. Annotate an image with both rectangle and ellipse shapes.
2. Export the annotated data.
3. Train a model using the exported data.
4. Check the training data and results for ellipse annotations.

Expected Behavior:
Both rectangle and ellipse annotations should be included in the exported data and used in model training.

Actual Behavior:
Only rectangle annotations are included in the exported data and used in model training. Ellipse annotations are missing.

Additional Information:
- Label Studio Version: 1.12.0
- Export Format: YOLO

Request for Help:
I would appreciate any guidance on how to ensure that ellipse annotations are correctly exported and used in training. Thank you!