I've used sandisk 32 gb sd cards out of the package, same type as yours, no formatting before I copy the image, and had no issues. If I reuse one, then i format using sdformatter, and it works fine.
The rooted android image shows 30.9 gb per windows explorer. That image fit on a 32 gb sd for me with no problems.
If you have formatted the card prior to copying the image and you're now seeing issues, I'd agree its likely something wrong with how you're formatting, but sounds like you're seeing this happen the first time, right out of the package.
The other (remote...?) possibility is bootleg sd cards? But if you're getting true sandisk sd cards from a reputable source, that shouldn't be an issue.
The rooted android image shows 30.9 gb per windows explorer. That image fit on a 32 gb sd for me with no problems.
If you have formatted the card prior to copying the image and you're now seeing issues, I'd agree its likely something wrong with how you're formatting, but sounds like you're seeing this happen the first time, right out of the package.
The other (remote...?) possibility is bootleg sd cards? But if you're getting true sandisk sd cards from a reputable source, that shouldn't be an issue.