Hello Shulhan, I just stumbled upon your patch while looking for the patch that I sent at the beginning of this week for the exact same issue. It turns out you sent your patch two months ago. I should have checked before debugging :face_palm: If you would like to check it out, here is my patch in [1]. I see that you have fixed resizeclistpanes but exact same issue is present on resizecdetpanes as well. I am not sure if the conditional logic is necessary because we are sure that `sash#` includes x, y positions in ttk mode but it includes only the x position if not ttk. Also setting the y coord to 0 might have unintended consequences. [1] https://lore.kernel.org/git/0b5b8fb591e434a2a24b1f58d1ce3fc7da48a28e.1645386457.git.gitgitgadget@xxxxxxxxx/ Signed-off-by: Halil Sen <halil.sen@xxxxxxxxx>