Hi @hannaborod,
I was able to reproduce the reported behavior with different pop-up window and drop-down UI control. I would recommend you create a support request reporting this issue. Thanks,
Hello, @Vignesh Ponnusamy! Thanks for your answer!
I’ve created support case with this issue. I will update my topic with their answer.
UPDATE
I’ve received an answer to my support case:
It's a bug in the new Aurelia control and we will report this to our engineering team.
As a workaround, you can set IsClientControl="false" for this control to switch it to old Aspx mode. In this case, it will hide the list of items when you move window.
Suggested workaround worked for me.
Thank you for sharing the update with the community @hannaborod!