Demodulation mode in frequency list not saved when closing application

[Axpelle]

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FIRST: Before reporting any bug, make sure that the bug you are reporting has not been reported before. Also, try to use the nightly version if possible in case I've already fixed the bug.

Hardware

• CPU: Apple Silicon M2
• RAM: 8GB
• GPU:
• SDR: Airspy Mini local via USB port
  Software
• Operating System: MacOS 15.7.5
• SDR++: 1.3.0 May 2 2026
  Bug Description
  In list of frequencies to be scanned, the demodulation mode can be set but is not persistent, ie when changing groups in Frequency Manager the mode is not saved. The next time it is chosen the mode reverts to Unspecified.

Steps To Reproduce

1. In Frequency Manager set a list of frequencies to AM.
2. Switch to another list in Frequency Manager and set the list of frequencies to FM.
3. Toggle from one list to another: the demodulation mode defaults to Unspecified.
4. The same issue occurs when closing the app and reopening it. The mode is not preserved.

Only If SDR++ fails to lauch or the SDR fails to start:
Run SDR++ from a command line window with special parameters:

• On Windows, open a terminal and cd to SDR++'s directory and run .\sdrpp.exe -c (if running SDR++ version 1.0.4 or older, use -s instead, though you should probably update SDR++ instead...)
• On Linux: Open a terminal and run sdrpp -c
• On MacOS: Open a terminal and run /path/to/the/SDR++.app/Contents/MacOS/sdrpp -c
  Then, post the entire logs from start to after the issue. DOT NOT truncate to where you think the error is...

Screenshots
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Additional info
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