KurtE
February 27, 2026, 3:43pm
1
I know I have seen something like this before, and will search for it in a bit.
But - it happened again on my Windows 11 machine.
Not sure what changed or how... I just started up the IDE, first time today...
Trying to remember what steps it takes to get things back:
Steps to get back to a normal behavior
Close all IDE instances.
Start the IDE.
Sometimes you have to close and start the IDE a few times before it comes right. My record is 3 times (if memory serves me well).
KurtE
February 27, 2026, 4:19pm
3
Thanks,
It took 3...
Question still is, what caused this? Also I have had random times when all my settings were lost, like Serial monitor on the right...
This bug has been reported to the Arduino IDE developers here:
opened 04:20PM - 21 May 24 UTC
topic: code
type: imperfection
### Describe the problem
Whenever I create a new sketch, the "File,Edit,Sketch,… Tool, Help" menu is incorporated into the "verify, upload and debug" menu, rendering some parts unavailable and the window cannot be moved:

This is accompanied by a dialog that says:
> A setting has changed that requires a restart to take effect.
>
> Press the restart button to restart Arduino IDE and enable the setting.

If The "**RESTART**" button in the dialog is pressed, the menu bar on the current sketch is placed in the same situation as above.
At first, a couple of clicking on new sketch would solve the problem. Now, it is constant.
### To reproduce
do not think you can reproduce.
### Expected behavior
to work properly
### Arduino IDE version
- 2.3.2
- latest nightly build
### Operating system
Windows
### Operating system version
10
### Additional context
Discussion:
https://forum.arduino.cc/t/ide-2-3-2-issue/1262578
#### Additional reports
- https://github.com/arduino/arduino-ide/issues/2680
- https://github.com/arduino/arduino-ide/issues/2744
- https://github.com/arduino/arduino-ide/issues/2772#issuecomment-3227652077
- https://github.com/arduino/arduino-ide/issues/2802
- https://forum.arduino.cc/t/a-setting-has-changed/1167019/1
- https://forum.arduino.cc/t/a-setting-has-changed/1167019/3
- https://forum.arduino.cc/t/a-setting-has-changed/1167019/20
- https://forum.arduino.cc/t/the-ide-asks-me-to-restart-and-then-it-locks-up/1171063
- https://forum.arduino.cc/t/problem-with-ide2-1/1193160/1
- https://forum.arduino.cc/t/problem-with-ide2-1/1193160/14
- https://forum.arduino.cc/t/funky-title-bar-after-reset/1248431
- https://forum.arduino.cc/t/ide-2-3-2-issue/1262578
- https://forum.arduino.cc/t/many-background-tasks-with-ide2-3-2/1263835
- https://forum.arduino.cc/t/cannot-move-ide-2-3-2-sketch-window-between-monitors-on-win10/1276812/5
- https://forum.arduino.cc/t/cannot-move-ide-2-3-2-sketch-window-between-monitors-on-win10/1276812/8
- https://forum.arduino.cc/t/should-we-still-report-and-check-for-semi-minor-issues-and-annoyances/1290531/6
- https://forum.arduino.cc/t/problem-with-the-ide-interface/1293258
- https://forum.arduino.cc/t/ide-top-level-menu-dissapeared-after-update/1322395/1
- https://forum.arduino.cc/t/ide-top-level-menu-dissapeared-after-update/1322395/7
- https://forum.arduino.cc/t/ide-not-opening-correctly/1332053
- https://forum.arduino.cc/t/ide-2-3-4-issue/1346166
- https://forum.arduino.cc/t/arduino-ide-2-3-6-is-now-available/1371936/20
- https://forum.arduino.cc/t/odd-page-when-i-open-up-the-ide/1373083
- https://forum.arduino.cc/t/ide-loses-top-bar-will-not-close/1386361
- https://forum.arduino.cc/t/arduino-ui-broken-and-unuseable/1390458/1
- https://forum.arduino.cc/t/arduino-ui-broken-and-unuseable/1390458/5
- https://forum.arduino.cc/t/ide-2-3-x-versions-hardly-usable/1399626
- https://forum.arduino.cc/t/title-bar-unexpectedly-switches-to-custom-style/1399657
- https://forum.arduino.cc/t/arduino-ide-not-working-minimize-fullscreen-and-close-buttons-covering-options/1402152
- https://forum.arduino.cc/t/top-menu-displays-on-right-side-and-is-blocked-by-window-buttons/1409926
- https://forum.arduino.cc/t/damn-toolbar-problems/1410666
- https://forum.arduino.cc/t/ide-setting-has-changed/1415730
- https://forum.arduino.cc/t/nesso-mazes-imu-test/1416402/12
- https://forum.arduino.cc/t/2-3-8-setting-changed-require-restart-now-no-menu-bar/1433053
#### Related
- https://github.com/arduino/arduino-ide/issues/2716
- https://forum.arduino.cc/t/solved-linux-appimage-2-3-2-no-menu-unable-to-save-sketch/1242394
- https://forum.arduino.cc/t/toolbar-disappeared-in-linux/1265437
---
<details>
<summary><b>Keywords</b></summary>
<p>
- "custom"
- "window.titleBarStyle"
- "native"
</p>
</details>
### Issue checklist
- [X] I searched for previous reports in [the issue tracker](https://github.com/arduino/arduino-ide/issues?q=)
- [X] I verified the problem still occurs when using the latest [nightly build](https://www.arduino.cc/en/software#nightly-builds)
- [X] My report contains all necessary details
KurtE
February 27, 2026, 4:28pm
5
Thanks @ptillisch - I knew I saw something from before... Although
it has been a while...
I've seen the serial monitor happen once. After checking the setting (under preferences) I discovered that the warning level was reset to default as well, something I never would have done.
sonofcy
February 27, 2026, 7:44pm
7
I too have seen several settings change at random. Should we be reporting them?
KurtE
February 27, 2026, 9:06pm
8
Yes I have had this a couple of times as well, and like you would never have set it to the default!
Good question, it is probably all related to the one @ptillisch mentioned above.
At this point, I figure they are aware of some of these, but probably busy up to their eyeballs with other things.
Wawa
February 27, 2026, 9:59pm
9
Is this because the shift to Ai assisted coding?
Now people have to do more to fix Ai screw-ups?
The last stable IDE was 1.8.19.
I still prefer it over V2.