Hi Sorry if I misunderstand but for your description suppose that you have a custom code that catch the escape key and you link this with the Close() method of the form.
The forms dont close by default with the ESC key
For we could help you, we need a small runnable sample with the same code that you have in the form
We have tested the timepicker, but can’t reproduce the bad functionality
Can You please attach or send a little sample with the issue case?
I attach a little video sample
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