Invalid values when listing pants

I am having this exact same issue. I’m still working on figuring it out. I am also having the same problem when I try to create a parent listing for my variations, once I fill in all the relevant information the save button lights up. Then instantly goes grey and all of these other fields pop up on the end of the table (the same ones in your photo) and say the value specified is invalid no matter what I put it as.

If I figure it out I will comment on here! If you do too please let me know how you did it.

Many thanks