Editor highlighting line break when hitting return

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Ben Ward
Ben Ward 2025-6-20
评论： Ben Ward 2025-7-14
Hi,
I have been working with this problem for a few years. I have not found a solution and I cannot get used to it.
Here is what happens...
  • I want to insert a new line of text in the middle of a script.
  • I place the cursor at the end of a line.
  • I hit return to create a new line.
  • Matlab inexplicably selects the line break.
  • When I start typing the line break is overwritten.
  • The new text goes at the end of the old line, instead of at the beginning the new line.
  • This problem happens intermittently.
This never used to be an issue, but it has been a persistent annoyance for the last couple of years. I have tried looking for a solution, but I have yet to find one that works.
I am currently using Matlab R2024a Update 1 on a Mac Studio Apple M1 Ultra running Sequoia 15.5
Please help!
thanks,
Ben
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dpb
dpb 2025-6-25
Oh, another thought. Have you tried updating a driver for the particular hardware? Maybe there's a fix there for a known issue...

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采纳的回答

K.
K. 2025-7-11
I was able to reproduce this with a Magic Mouse in R2025a and have reported the issue to the appropriate person within MathWorks. I have also referred them to this page in case they have any information to share.
  2 个评论
dpb
dpb 2025-7-11
Kewl! to know it was/is reproducible. Be interesting to learn if it is actually a code defect or something non-conformant in the mouse firmware...
Ben Ward
Ben Ward 2025-7-14
Great that you were able to reproduce this. Thanks for looking into it.
Ben

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更多回答（1 个）

Ruchika Parag
Ruchika Parag 2025-6-25
Hi @Ben Ward, based on your description, it seems like there may be a UI behavior issue in the MATLAB Editor, possibly related to macOS input handling or preferences.
Here are a few things you can try:
1. Check Editor Preferences
Sometimes aggressive auto-formatting or indentation settings can cause unexpected behavior.
  • Go to Home > Preferences > Editor/Debugger > Language.
  • Try disabling Smart Indentation, Auto Formatting, and any related options.
  • Restart MATLAB and test again.
2. Disable macOS Press-and-Hold Behavior
macOS includes a feature that can interfere with how some keys (like Return) behave in applications. You can disable it with this terminal command:
defaults write -g ApplePressAndHoldEnabled -bool false
After running the command, restart MATLAB (and possibly the system) to apply the change.
Hope this helps!
  2 个评论
Ben Ward
Ben Ward 2025-6-25
移动：Walter Roberson 2025-7-11
Thanks @Ruchika Parag
This did not fix it, so I will try @dpb's suggestion of swapping out the magic mouse.
Ben Ward
Ben Ward 2025-7-14
Thanks all.
Unfortunately none of the suggestions worked.
all the best,
Ben

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