Tracket preset input (bug maybe)

I’ve started using track presets.

For some reason, ONE track preset (bass, input 6) does not save which input I select for that track.
So every time I add the preset, the input is set to input 5, guitar.
Even when I choose bass input 6 and save it as new preset name, and add that preset to the project, the input is set as guitar input 5.
It seems to only happen on that one track preset.
I also tried creating a bass preset from scratch. Same result: guitar is selected as input.
Is this a known bug, or what could I be doing wrong?