It is impossible to work in the program

[Storm033]

There are always problems with the clipboard during the copy-paste operation. You copy one, and another is inserted. And sometimes even in an incomprehensible place. And sometimes visually inserts it where it is needed, but in fact - at the beginning of the page. Visually you look at the code, everything is correct, but it does not work. You exit the program, open it again - and you get fooled by what is presented there.

[BenPleysier]

Instead of <meta charset="windows-1261"> try <meta charset="UTF-8">

[Storm033]

This happens on various files (php, js,css), where the charset is not even declared.

[Ben M]

Can you try logging in as another user on the computer and see if DW performs in the same manner with copy/paste?  Even a guest account would work for this test.

[Storm033]

In fact, I even reinstalled windows. It didn't help. I had suspicions that it had something to do with disk access, because periodically the changes were not saved. Then what about the DW memory stack, since I use a temporary file.
If I have started this report now, then I will put a camera on now and shoot the process of work in order to finish this report.

[B i r n o u]

I can't reproduce it here on any files... PHP, JS, SCSS, and of course HTML

can you try placing the cursor on the DIV line (anywhere in the line, and be sure to not selecting any char , nor space... just a blinking cursor)

then hit the Ctrl D shortcut... does the line duplicate itself, or is there is any not wanted char in it ?

[Storm033]

This does not happen consistently and necessarily. Just after a certain amount of time, the program suddenly starts to fail. And what worked well during the previous hours suddenly starts to fail.

[B i r n o u]

so when the program will start to fail again, and when you copy / paste (using the dropdown menu) the trouble will happen again, please try to use the duplicate line shortcut to see if it produce the same result ?

[Jon Fritz]

Have you tried Restoring Preferences yet?

That fixes a lot of strange behavior in DW from installation issues.