Hi Muhammet,
My first suggestion would be to update to version 12 to see if that resolves the issue.
Would it be possible for you to send detailed reproduction steps and information like which countertop you are using to residentialsupport@2020spaces.com? I have tried to recreate the issue in version 11.10.1, 11.12 and 12.0 and have not been able to reproduce.
Thanks in advance for your help.
Neil