Exactly the same issue here, extremely frustrating!
Same situation: spousal return (I use premier online version).
No error message or explanation after I enter dates (e.g. 01/09/2022 to 31/08/2023, but I tried others) and it reverts to the default each time.
I did add checkboxes for 2022 under the medical expense profile, but this does not seem to change a thing.
When you try to recreate the error, please be sure to try with spousal return on premier online.
