# Generating new dataset version leave images empty

**URL:** <https://discuss.roboflow.com/t/generating-new-dataset-version-leave-images-empty/1572>\
**Category:** 🤝  Community Help\
**Tags:** bugs, export\
**Created:** [February 28, 2023, 11:18pm UTC](https://discuss.roboflow.com/t/generating-new-dataset-version-leave-images-empty/1572 "2023-02-28T23:18:03Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Mohamed](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/mohamed/32/62_2.png) [@Mohamed](https://discuss.roboflow.com/u/Mohamed)\
**Post date:** [March 2, 2023, 7:01pm UTC](https://discuss.roboflow.com/t/generating-new-dataset-version-leave-images-empty/1572/5 "2023-03-02T19:01:23Z")

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@Juraj_Budai - I found the issue for your dataset. The annotation characters did not get parsed correctly.

The box labels are expected to be strings led with a letter (and we’ve recently added support for labels to be led by numbers, if you choose).

In your case, I assume you uploaded a dataset that contained non-English characters for the labels, or you added non-English characters for the labels within Roboflow.

![image](https://canada1.discourse-cdn.com/flex029/uploads/roboflow1/original/2X/9/92b4872e714c9b161679791bdc60b3873edc6d4c.png)

Modify Classes will be required to remap the characters in your generated version so it comes out successfully:

- [Image Preprocessing - Roboflow](https://docs.roboflow.com/image-transformations/image-preprocessing#modify-classes)

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