Wrong Developer name in Testflight

Hi all, although the developer name is correctly entered in the console as ‘Kalkhoff Werke’, the test flight version only shows ‘Kalhoff Werke’ without the ‘k’ in the middle of the first word. How can this be and how can we ensure that the name is displayed correctly in our actual release (early April)?

Screenshot:

https://photos.app.goo.gl/kchmJcmHe8yfkCRw9

Wrong Developer name in Testflight
 
 
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