Why are my custom products not publishing to Google?

Yes, it does but I mark everything custom & it doesn’t matter. I not only mark custom product & choose the Google Category for everything, but I also pick age range, gender, size, condition, color, etc. & still it’s not working. Right after I put all that information in, yes it does get removed from the non published list. But I just have to wait between 2-10 minutes & the product reappears on the non published list. I’ll even double check it & all the fields are there properly marked.