Hi @Jiri_Hromadka, welcome to the Asana Community Forum and thanks for reporting this!
Unfortunately I couldn’t reproduce this issue, could you try following these troubleshooting steps in case this is related to a browser issue? If the issue persists, I recommend you to contact our support team and send them the images so we can try to reproduce it and escalate it to our product team: How to contact our Support Team ✉
Let me know if you have any other questions!