Hi Stanislav,
Greetings from Syncfusion.
Based on your shared details, we have checked the reported problem. We could not able to reproduce the problem at our end. The column names are properly shown in the column chooser. Find the below sample for your reference.
Also, we need some details regarding the reported problem to check further. Could you please share the below details which will be helpful to validate and provide a better solution.
- Reproduce the problem in the provided sample and revert back to us.
- Share a simple reproduceable sample if possible.
- Did you applied any custom styles to the Grid?
- Share your theme reference styles file.
- Whether did you referred any custom theme in your application?
Regards,
Rahul