I used softproofing to grayscale my images in the past. This has stopped working now that I upgraded from 4.29 to 4.3. I went to settings - configure - color mgmt - soft proofing and changed the models but to no avail. I'm unsure why this is happening, not sure if it may be a bug? Any idea how I can get softproofing to grayscale again? Thanks
I'm on windows, 4.3

Softproofing is stored per image, so if you had an image previously made, you will need to set it to grayscale in image->properties->softproofing.

The checkbox that says '(don't) store softproofing into the image' was broken and now fixed, though I still don't understand how it got broken in the first place.