Reproduction:
OS: Mint 20.1
Option Editor window may lay behind the Cud main window. can you move windows to check?
I cannot repro this on Ubuntu 20.04. Cud is opened and Options Editor too.
I right-click OS taskbar (Gnome) and call 'Quit' item. both windows are visible.
after I click X in Option Editor, both are closed.
In app/task bar, click on CudaText to close/minimize it (and display the third app)
no items in app bar's popup: close, minimize, maximize. So I guess it is desktop related. Cannot repro on Gnome.
So OS Mint with Cinnamon. When I will get them, i will test again..
(renaming .mp4 to .zip will allow to attach it here.)
In addition, even when I try to minimize the modal/window by clicking its icon -, the modal/window disappears for ever and CT gets frozen.
- really required? If you try to remove this and its function (if any exists) then, perhaps the problem will disappear, too.- work in your system?Usually - is used in windows. I do not see any reason for it to be used in modals, since they never loose focus until they get closed by user.
Pls show screenshot of Cud modal window with - icon, maybe I dont have - icon on ubuntu, need to see.
See the following video:
Ubuntu 20.04 don't show 'minimize' icon for OptEditor.
@kvichans does your Windows show 'minimize' icon in OptEditor?

so we cannot fix it! local Linux problem
Ooh, I see! Very weird!

Made a fix! modal form showing will disable 'minimize' icon. no API needed now. thanks for finding @GHNewbiee
is this beta working better in OptEditor?
http://uvviewsoft.com/c/
@GHNewbiee
Is it possible a deb file? I am more confident with deb files. I am still Newbiee!
uploaded.
Unfortunately the initial problem exists. After single-clicking twice the CT app in task bar, the modal does not appear again, and, hence I have to kill it.
made the change. beta updated. better?
It's better but not perfect!
I delay the fixes until I get Mint OS installed.
OK. Linux Mint with Cinnamon; no mate, no xfce. In windows, does it work fine? In mate, xfce? Any information?
new idea. show taskbar icons for all plugin dialogs. meybe it will help? beta updated now.
Hooray! Yes, yes, yes, it is soooolved! Now I have full control! No more killing the app! Well done Alexey! You can close the issue.
Я резко против. Не нужно делать всем модальным диалогам место в таскбаре! Это нарушает выработанную годами (уже десятилетиями) расстановку.
Только по опции!
@kvichans Под Вин осталось как ранее- там и бага не было
ок
But. for Ubuntu users (who has NO problem)I added the option!