Problems with C1 Fujifilm Base Characteristic Tool

Hello

I use Capture One 20 Fujifilm with Windows 10 and in the base characteristics tool I have the curve on Auto.
I have now more often the problem with some photos, that the film simulation I used can not be changed. For example, I made a few photos with the film simulation Acros Red Filter and these are also displayed in the Base Characteristic Tool like the Acros film simulation (curve on Auto).
But if I want to chance the Profile to default or other ICC profiles like Astia or Velvia, nothing happens. The photo still remains B&W. Only the tone curve changes (brighter or darker).
This happens only with some B&W photos but also with all photos I took with the custom colored film simulation "Bright Summer" from Fuji X Weekly.
This is very annoying when I can't view these photos with the default RAW profile and thus can't switch from B&W to color anymore.

What could be the problem for this

Thanks for helping me out

Michael