App Designer not Saving New Codes

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Hello Everyone,
My app designer is not saving new codes....It shows the * sign and when I save, it does not save the new code. I then have to shut down sometimes and the code still remains like the old code without the new code...Please advise me on what to do.
Walter Roberson
Walter Roberson on 6 Aug 2021
You will probably need to create a support case for this.
I myself almost never use App Designer at all, and I only use matlab on Windows to check compatibility, not to do development.... so I do not have the experience to make any suggestions.

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Accepted Answer

Shanmukha Voggu
Shanmukha Voggu on 6 Aug 2021
We are investigating the sources for the cause of not saving new code and even some times the save may be delayed especially for large files
The reasons may be
- If the app is large then tab completion in large files can delay the save
- Parsing the contents of the file to fill in App Designer's Code Browser
The team is investigating other sources as it appears there are more causes for this than just the two above and may be fixed in future releases
I recommend splitting out some logic from the main MLAPP into external M-files to reduce the size of the app.
This problem has been solved for me especially when using R2021b. One method I used before it was solved was to save the app on a USB file and then run the app that way.
But contact Mathwork support and they will help you excellently.

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