125kB not decode?

[DL5BCA]

Hello,
I'm experiencing a strange issue with the Ryde receiver at our repeater location.
I access the Ryde via Putty and wanted to add additional bandwidth (125 kB).
333 kB and 1000 kB work without issues.
Now I go to menu 4, Presets, and select 8, 437.0 MHz_1000 preset.
Then I select the 437 MHz band and enter the frequency 437500 kHz.
Then I select "Scan SRs Set Multiple Receive SRs for Scanning" and enter "125" - OK - "333" - OK - "1000" - OK, and then leave the 0 so that no further SRs are saved.
Then "Receive."
Unfortunately, the 125 kB aren't being decoded. Also 500kB aren't decoded.

What am I doing wrong?

73 Thomas DL5BCA

[g0mjw]

Probably there is a frequency offset in the NIM so it isn't locking onto the narrow signal.