A Variant Simply Not Working

I am going nuts with trying to add a variant, it is simply not showing up on my products at all

I have added

the name

the categories

made it separate products

to show on the product

The variations

All my other ones actually add a feature code, not this one and I cannot find anywhere that tells me how to actually do that.

The Features, variants is amazingly hard to work out, everything I have tried to do is by trial and error before fluking on something that actually works, cannot find the fluke in this one.

Have noticed it is showing up as a feature on the product, but I cannot add new products within the variant list

Fixed it, not sure how, but trial and error works again lol